O-rings
AS568 O-ring size chart
AS568 lists 369 standard O-ring sizes: 349 general-purpose sizes, 346 of them in five cross sections from 0.070 in to 0.275 in plus -001 to -003 below that, and 20 boss seals from -901 to -932. This chart carries every size with inside diameter, cross section and tolerances in inches and millimeters, and each dash number links to its own page with STEP, DXF and PDF files. Metric sizes follow ISO 3601-1, where the inch-derived size code is the same dash number. Send the dash number, the compound and the quantity and we quote it.
The chart
We stock every AS568 size
Every dash number is linked to its own page below, with the stock line for that size.
| Dash | ID in | ID mm | ID tol in | ID tol mm | CS in | CS mm | CS tol in | CS tol mm | OD in (ref) | OD mm (ref) |
|---|---|---|---|---|---|---|---|---|---|---|
| AS568-001 | 0.029 | 0.74 | +/- 0.004 | +/- 0.10 | 0.040 | 1.02 | +/- 0.003 | +/- 0.08 | 0.109 | 2.78 |
| AS568-002 | 0.042 | 1.07 | +/- 0.004 | +/- 0.10 | 0.050 | 1.27 | +/- 0.003 | +/- 0.08 | 0.142 | 3.61 |
| AS568-003 | 0.056 | 1.42 | +/- 0.004 | +/- 0.10 | 0.060 | 1.52 | +/- 0.003 | +/- 0.08 | 0.176 | 4.46 |
| AS568-004 | 0.070 | 1.78 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.210 | 5.34 |
| AS568-005 | 0.101 | 2.57 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.241 | 6.13 |
| AS568-006 | 0.114 | 2.90 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.254 | 6.46 |
| AS568-007 | 0.145 | 3.68 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.285 | 7.24 |
| AS568-008 | 0.176 | 4.47 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.316 | 8.03 |
| AS568-009 | 0.208 | 5.28 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.348 | 8.84 |
| AS568-010 | 0.239 | 6.07 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.379 | 9.63 |
| AS568-011 | 0.301 | 7.65 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.441 | 11.21 |
| AS568-012 | 0.364 | 9.25 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.504 | 12.81 |
| AS568-013 | 0.426 | 10.82 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.566 | 14.38 |
| AS568-014 | 0.489 | 12.42 | +/- 0.005 | +/- 0.13 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.629 | 15.98 |
| AS568-015 | 0.551 | 14.00 | +/- 0.007 | +/- 0.18 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.691 | 17.56 |
| AS568-016 | 0.614 | 15.60 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.754 | 19.16 |
| AS568-017 | 0.676 | 17.17 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.816 | 20.73 |
| AS568-018 | 0.739 | 18.77 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.879 | 22.33 |
| AS568-019 | 0.801 | 20.35 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 0.941 | 23.91 |
| AS568-020 | 0.864 | 21.95 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.004 | 25.51 |
| AS568-021 | 0.926 | 23.52 | +/- 0.009 | +/- 0.23 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.066 | 27.08 |
| AS568-022 | 0.989 | 25.12 | +/- 0.010 | +/- 0.25 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.129 | 28.68 |
| AS568-023 | 1.051 | 26.70 | +/- 0.010 | +/- 0.25 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.191 | 30.26 |
| AS568-024 | 1.114 | 28.30 | +/- 0.010 | +/- 0.25 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.254 | 31.86 |
| AS568-025 | 1.176 | 29.87 | +/- 0.011 | +/- 0.28 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.316 | 33.43 |
| AS568-026 | 1.239 | 31.47 | +/- 0.011 | +/- 0.28 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.379 | 35.03 |
| AS568-027 | 1.301 | 33.05 | +/- 0.011 | +/- 0.28 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.441 | 36.61 |
| AS568-028 | 1.364 | 34.65 | +/- 0.013 | +/- 0.33 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.504 | 38.21 |
| AS568-029 | 1.489 | 37.82 | +/- 0.013 | +/- 0.33 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.629 | 41.38 |
| AS568-030 | 1.614 | 41.00 | +/- 0.013 | +/- 0.33 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.754 | 44.56 |
| AS568-031 | 1.739 | 44.17 | +/- 0.015 | +/- 0.38 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 1.879 | 47.73 |
| AS568-032 | 1.864 | 47.35 | +/- 0.015 | +/- 0.38 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.004 | 50.91 |
| AS568-033 | 1.989 | 50.52 | +/- 0.018 | +/- 0.46 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.129 | 54.08 |
| AS568-034 | 2.114 | 53.70 | +/- 0.018 | +/- 0.46 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.254 | 57.26 |
| AS568-035 | 2.239 | 56.87 | +/- 0.018 | +/- 0.46 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.379 | 60.43 |
| AS568-036 | 2.364 | 60.05 | +/- 0.018 | +/- 0.46 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.504 | 63.61 |
| AS568-037 | 2.489 | 63.22 | +/- 0.018 | +/- 0.46 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.629 | 66.78 |
| AS568-038 | 2.614 | 66.40 | +/- 0.020 | +/- 0.51 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.754 | 69.96 |
| AS568-039 | 2.739 | 69.57 | +/- 0.020 | +/- 0.51 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 2.879 | 73.13 |
| AS568-040 | 2.864 | 72.75 | +/- 0.020 | +/- 0.51 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 3.004 | 76.31 |
| AS568-041 | 2.989 | 75.92 | +/- 0.024 | +/- 0.61 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 3.129 | 79.48 |
| AS568-042 | 3.239 | 82.27 | +/- 0.024 | +/- 0.61 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 3.379 | 85.83 |
| AS568-043 | 3.489 | 88.62 | +/- 0.024 | +/- 0.61 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 3.629 | 92.18 |
| AS568-044 | 3.739 | 94.97 | +/- 0.027 | +/- 0.69 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 3.879 | 98.53 |
| AS568-045 | 3.989 | 101.32 | +/- 0.027 | +/- 0.69 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 4.129 | 104.88 |
| AS568-046 | 4.239 | 107.67 | +/- 0.030 | +/- 0.76 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 4.379 | 111.23 |
| AS568-047 | 4.489 | 114.02 | +/- 0.030 | +/- 0.76 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 4.629 | 117.58 |
| AS568-048 | 4.739 | 120.37 | +/- 0.030 | +/- 0.76 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 4.879 | 123.93 |
| AS568-049 | 4.989 | 126.72 | +/- 0.037 | +/- 0.94 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 5.129 | 130.28 |
| AS568-050 | 5.239 | 133.07 | +/- 0.037 | +/- 0.94 | 0.070 | 1.78 | +/- 0.003 | +/- 0.08 | 5.379 | 136.63 |
| AS568-102 | 0.049 | 1.24 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.255 | 6.48 |
| AS568-103 | 0.081 | 2.06 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.287 | 7.30 |
| AS568-104 | 0.112 | 2.84 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.318 | 8.08 |
| AS568-105 | 0.143 | 3.63 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.349 | 8.87 |
| AS568-106 | 0.174 | 4.42 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.380 | 9.66 |
| AS568-107 | 0.206 | 5.23 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.412 | 10.47 |
| AS568-108 | 0.237 | 6.02 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.443 | 11.26 |
| AS568-109 | 0.299 | 7.59 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.505 | 12.83 |
| AS568-110 | 0.362 | 9.19 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.568 | 14.43 |
| AS568-111 | 0.424 | 10.77 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.630 | 16.01 |
| AS568-112 | 0.487 | 12.37 | +/- 0.005 | +/- 0.13 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.693 | 17.61 |
| AS568-113 | 0.549 | 13.94 | +/- 0.007 | +/- 0.18 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.755 | 19.18 |
| AS568-114 | 0.612 | 15.54 | +/- 0.009 | +/- 0.23 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.818 | 20.78 |
| AS568-115 | 0.674 | 17.12 | +/- 0.009 | +/- 0.23 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.880 | 22.36 |
| AS568-116 | 0.737 | 18.72 | +/- 0.009 | +/- 0.23 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 0.943 | 23.96 |
| AS568-117 | 0.799 | 20.30 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.005 | 25.54 |
| AS568-118 | 0.862 | 21.89 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.068 | 27.13 |
| AS568-119 | 0.924 | 23.47 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.130 | 28.71 |
| AS568-120 | 0.987 | 25.07 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.193 | 30.31 |
| AS568-121 | 1.049 | 26.64 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.255 | 31.88 |
| AS568-122 | 1.112 | 28.24 | +/- 0.010 | +/- 0.25 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.318 | 33.48 |
| AS568-123 | 1.174 | 29.82 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.380 | 35.06 |
| AS568-124 | 1.237 | 31.42 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.443 | 36.66 |
| AS568-125 | 1.299 | 32.99 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.505 | 38.23 |
| AS568-126 | 1.362 | 34.59 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.568 | 39.83 |
| AS568-127 | 1.424 | 36.17 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.630 | 41.41 |
| AS568-128 | 1.487 | 37.77 | +/- 0.012 | +/- 0.30 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.693 | 43.01 |
| AS568-129 | 1.549 | 39.34 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.755 | 44.58 |
| AS568-130 | 1.612 | 40.94 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.818 | 46.18 |
| AS568-131 | 1.674 | 42.52 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.880 | 47.76 |
| AS568-132 | 1.737 | 44.12 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 1.943 | 49.36 |
| AS568-133 | 1.799 | 45.69 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.005 | 50.93 |
| AS568-134 | 1.862 | 47.30 | +/- 0.015 | +/- 0.38 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.068 | 52.54 |
| AS568-135 | 1.925 | 48.90 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.131 | 54.14 |
| AS568-136 | 1.987 | 50.47 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.193 | 55.71 |
| AS568-137 | 2.050 | 52.07 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.256 | 57.31 |
| AS568-138 | 2.112 | 53.64 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.318 | 58.88 |
| AS568-139 | 2.175 | 55.25 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.381 | 60.49 |
| AS568-140 | 2.237 | 56.82 | +/- 0.017 | +/- 0.43 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.443 | 62.06 |
| AS568-141 | 2.300 | 58.42 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.506 | 63.66 |
| AS568-142 | 2.362 | 59.99 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.568 | 65.23 |
| AS568-143 | 2.425 | 61.60 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.631 | 66.84 |
| AS568-144 | 2.487 | 63.17 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.693 | 68.41 |
| AS568-145 | 2.550 | 64.77 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.756 | 70.01 |
| AS568-146 | 2.612 | 66.34 | +/- 0.020 | +/- 0.51 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.818 | 71.58 |
| AS568-147 | 2.675 | 67.95 | +/- 0.022 | +/- 0.56 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.881 | 73.19 |
| AS568-148 | 2.737 | 69.52 | +/- 0.022 | +/- 0.56 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 2.943 | 74.76 |
| AS568-149 | 2.800 | 71.12 | +/- 0.022 | +/- 0.56 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.006 | 76.36 |
| AS568-150 | 2.862 | 72.69 | +/- 0.022 | +/- 0.56 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.068 | 77.93 |
| AS568-151 | 2.987 | 75.87 | +/- 0.024 | +/- 0.61 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.193 | 81.11 |
| AS568-152 | 3.237 | 82.22 | +/- 0.024 | +/- 0.61 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.443 | 87.46 |
| AS568-153 | 3.487 | 88.57 | +/- 0.024 | +/- 0.61 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.693 | 93.81 |
| AS568-154 | 3.737 | 94.92 | +/- 0.028 | +/- 0.71 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 3.943 | 100.16 |
| AS568-155 | 3.987 | 101.27 | +/- 0.028 | +/- 0.71 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 4.193 | 106.51 |
| AS568-156 | 4.237 | 107.62 | +/- 0.030 | +/- 0.76 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 4.443 | 112.86 |
| AS568-157 | 4.487 | 113.97 | +/- 0.030 | +/- 0.76 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 4.693 | 119.21 |
| AS568-158 | 4.737 | 120.32 | +/- 0.030 | +/- 0.76 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 4.943 | 125.56 |
| AS568-159 | 4.987 | 126.67 | +/- 0.035 | +/- 0.89 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 5.193 | 131.91 |
| AS568-160 | 5.237 | 133.02 | +/- 0.035 | +/- 0.89 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 5.443 | 138.26 |
| AS568-161 | 5.487 | 139.37 | +/- 0.035 | +/- 0.89 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 5.693 | 144.61 |
| AS568-162 | 5.737 | 145.72 | +/- 0.035 | +/- 0.89 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 5.943 | 150.96 |
| AS568-163 | 5.987 | 152.07 | +/- 0.035 | +/- 0.89 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 6.193 | 157.31 |
| AS568-164 | 6.237 | 158.42 | +/- 0.040 | +/- 1.02 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 6.443 | 163.66 |
| AS568-165 | 6.487 | 164.77 | +/- 0.040 | +/- 1.02 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 6.693 | 170.01 |
| AS568-166 | 6.737 | 171.12 | +/- 0.040 | +/- 1.02 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 6.943 | 176.36 |
| AS568-167 | 6.987 | 177.47 | +/- 0.040 | +/- 1.02 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 7.193 | 182.71 |
| AS568-168 | 7.237 | 183.82 | +/- 0.045 | +/- 1.14 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 7.443 | 189.06 |
| AS568-169 | 7.487 | 190.17 | +/- 0.045 | +/- 1.14 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 7.693 | 195.41 |
| AS568-170 | 7.737 | 196.52 | +/- 0.045 | +/- 1.14 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 7.943 | 201.76 |
| AS568-171 | 7.987 | 202.87 | +/- 0.045 | +/- 1.14 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 8.193 | 208.11 |
| AS568-172 | 8.237 | 209.22 | +/- 0.050 | +/- 1.27 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 8.443 | 214.46 |
| AS568-173 | 8.487 | 215.57 | +/- 0.050 | +/- 1.27 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 8.693 | 220.81 |
| AS568-174 | 8.737 | 221.92 | +/- 0.050 | +/- 1.27 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 8.943 | 227.16 |
| AS568-175 | 8.987 | 228.27 | +/- 0.050 | +/- 1.27 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 9.193 | 233.51 |
| AS568-176 | 9.237 | 234.62 | +/- 0.055 | +/- 1.40 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 9.443 | 239.86 |
| AS568-177 | 9.487 | 240.97 | +/- 0.055 | +/- 1.40 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 9.693 | 246.21 |
| AS568-178 | 9.737 | 247.32 | +/- 0.055 | +/- 1.40 | 0.103 | 2.62 | +/- 0.003 | +/- 0.08 | 9.943 | 252.56 |
| AS568-201 | 0.171 | 4.34 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.449 | 11.40 |
| AS568-202 | 0.234 | 5.94 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.512 | 13.00 |
| AS568-203 | 0.296 | 7.52 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.574 | 14.58 |
| AS568-204 | 0.359 | 9.12 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.637 | 16.18 |
| AS568-205 | 0.421 | 10.69 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.699 | 17.75 |
| AS568-206 | 0.484 | 12.29 | +/- 0.005 | +/- 0.13 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.762 | 19.35 |
| AS568-207 | 0.546 | 13.87 | +/- 0.007 | +/- 0.18 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.824 | 20.93 |
| AS568-208 | 0.609 | 15.47 | +/- 0.009 | +/- 0.23 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.887 | 22.53 |
| AS568-209 | 0.671 | 17.04 | +/- 0.009 | +/- 0.23 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 0.949 | 24.10 |
| AS568-210 | 0.734 | 18.64 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.012 | 25.70 |
| AS568-211 | 0.796 | 20.22 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.074 | 27.28 |
| AS568-212 | 0.859 | 21.82 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.137 | 28.88 |
| AS568-213 | 0.921 | 23.39 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.199 | 30.45 |
| AS568-214 | 0.984 | 25.00 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.262 | 32.06 |
| AS568-215 | 1.046 | 26.57 | +/- 0.010 | +/- 0.25 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.324 | 33.63 |
| AS568-216 | 1.109 | 28.17 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.387 | 35.23 |
| AS568-217 | 1.171 | 29.74 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.449 | 36.80 |
| AS568-218 | 1.234 | 31.34 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.512 | 38.40 |
| AS568-219 | 1.296 | 32.92 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.574 | 39.98 |
| AS568-220 | 1.359 | 34.52 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.637 | 41.58 |
| AS568-221 | 1.421 | 36.09 | +/- 0.012 | +/- 0.30 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.699 | 43.15 |
| AS568-222 | 1.484 | 37.69 | +/- 0.015 | +/- 0.38 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.762 | 44.75 |
| AS568-223 | 1.609 | 40.87 | +/- 0.015 | +/- 0.38 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 1.887 | 47.93 |
| AS568-224 | 1.734 | 44.04 | +/- 0.015 | +/- 0.38 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.012 | 51.10 |
| AS568-225 | 1.859 | 47.22 | +/- 0.018 | +/- 0.46 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.137 | 54.28 |
| AS568-226 | 1.984 | 50.39 | +/- 0.018 | +/- 0.46 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.262 | 57.45 |
| AS568-227 | 2.109 | 53.57 | +/- 0.018 | +/- 0.46 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.387 | 60.63 |
| AS568-228 | 2.234 | 56.74 | +/- 0.020 | +/- 0.51 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.512 | 63.80 |
| AS568-229 | 2.359 | 59.92 | +/- 0.020 | +/- 0.51 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.637 | 66.98 |
| AS568-230 | 2.484 | 63.09 | +/- 0.020 | +/- 0.51 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.762 | 70.15 |
| AS568-231 | 2.609 | 66.27 | +/- 0.020 | +/- 0.51 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 2.887 | 73.33 |
| AS568-232 | 2.734 | 69.44 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.012 | 76.50 |
| AS568-233 | 2.859 | 72.62 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.137 | 79.68 |
| AS568-234 | 2.984 | 75.79 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.262 | 82.85 |
| AS568-235 | 3.109 | 78.97 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.387 | 86.03 |
| AS568-236 | 3.234 | 82.14 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.512 | 89.20 |
| AS568-237 | 3.359 | 85.32 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.637 | 92.38 |
| AS568-238 | 3.484 | 88.49 | +/- 0.024 | +/- 0.61 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.762 | 95.55 |
| AS568-239 | 3.609 | 91.67 | +/- 0.028 | +/- 0.71 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 3.887 | 98.73 |
| AS568-240 | 3.734 | 94.84 | +/- 0.028 | +/- 0.71 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.012 | 101.90 |
| AS568-241 | 3.859 | 98.02 | +/- 0.028 | +/- 0.71 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.137 | 105.08 |
| AS568-242 | 3.984 | 101.19 | +/- 0.028 | +/- 0.71 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.262 | 108.25 |
| AS568-243 | 4.109 | 104.37 | +/- 0.028 | +/- 0.71 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.387 | 111.43 |
| AS568-244 | 4.234 | 107.54 | +/- 0.030 | +/- 0.76 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.512 | 114.60 |
| AS568-245 | 4.359 | 110.72 | +/- 0.030 | +/- 0.76 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.637 | 117.78 |
| AS568-246 | 4.484 | 113.89 | +/- 0.030 | +/- 0.76 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.762 | 120.95 |
| AS568-247 | 4.609 | 117.07 | +/- 0.030 | +/- 0.76 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 4.887 | 124.13 |
| AS568-248 | 4.734 | 120.24 | +/- 0.030 | +/- 0.76 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.012 | 127.30 |
| AS568-249 | 4.859 | 123.42 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.137 | 130.48 |
| AS568-250 | 4.984 | 126.59 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.262 | 133.65 |
| AS568-251 | 5.109 | 129.77 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.387 | 136.83 |
| AS568-252 | 5.234 | 132.94 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.512 | 140.00 |
| AS568-253 | 5.359 | 136.12 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.637 | 143.18 |
| AS568-254 | 5.484 | 139.29 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.762 | 146.35 |
| AS568-255 | 5.609 | 142.47 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 5.887 | 149.53 |
| AS568-256 | 5.734 | 145.65 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 6.012 | 152.71 |
| AS568-257 | 5.859 | 148.82 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 6.137 | 155.88 |
| AS568-258 | 5.984 | 151.99 | +/- 0.035 | +/- 0.89 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 6.262 | 159.05 |
| AS568-259 | 6.234 | 158.34 | +/- 0.040 | +/- 1.02 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 6.512 | 165.40 |
| AS568-260 | 6.484 | 164.69 | +/- 0.040 | +/- 1.02 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 6.762 | 171.75 |
| AS568-261 | 6.734 | 171.04 | +/- 0.040 | +/- 1.02 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 7.012 | 178.10 |
| AS568-262 | 6.984 | 177.39 | +/- 0.040 | +/- 1.02 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 7.262 | 184.45 |
| AS568-263 | 7.234 | 183.74 | +/- 0.045 | +/- 1.14 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 7.512 | 190.80 |
| AS568-264 | 7.484 | 190.09 | +/- 0.045 | +/- 1.14 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 7.762 | 197.15 |
| AS568-265 | 7.734 | 196.44 | +/- 0.045 | +/- 1.14 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 8.012 | 203.50 |
| AS568-266 | 7.984 | 202.79 | +/- 0.045 | +/- 1.14 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 8.262 | 209.85 |
| AS568-267 | 8.234 | 209.14 | +/- 0.050 | +/- 1.27 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 8.512 | 216.20 |
| AS568-268 | 8.484 | 215.49 | +/- 0.050 | +/- 1.27 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 8.762 | 222.55 |
| AS568-269 | 8.734 | 221.84 | +/- 0.050 | +/- 1.27 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 9.012 | 228.90 |
| AS568-270 | 8.984 | 228.19 | +/- 0.050 | +/- 1.27 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 9.262 | 235.25 |
| AS568-271 | 9.234 | 234.54 | +/- 0.055 | +/- 1.40 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 9.512 | 241.60 |
| AS568-272 | 9.484 | 240.89 | +/- 0.055 | +/- 1.40 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 9.762 | 247.95 |
| AS568-273 | 9.734 | 247.24 | +/- 0.055 | +/- 1.40 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 10.012 | 254.30 |
| AS568-274 | 9.984 | 253.59 | +/- 0.055 | +/- 1.40 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 10.262 | 260.65 |
| AS568-275 | 10.484 | 266.29 | +/- 0.055 | +/- 1.40 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 10.762 | 273.35 |
| AS568-276 | 10.984 | 278.99 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 11.262 | 286.05 |
| AS568-277 | 11.484 | 291.69 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 11.762 | 298.75 |
| AS568-278 | 11.984 | 304.39 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 12.262 | 311.45 |
| AS568-279 | 12.984 | 329.79 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 13.262 | 336.85 |
| AS568-280 | 13.984 | 355.19 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 14.262 | 362.25 |
| AS568-281 | 14.984 | 380.59 | +/- 0.065 | +/- 1.65 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 15.262 | 387.65 |
| AS568-282 | 15.955 | 405.26 | +/- 0.075 | +/- 1.90 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 16.233 | 412.32 |
| AS568-283 | 16.955 | 430.66 | +/- 0.080 | +/- 2.03 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 17.233 | 437.72 |
| AS568-284 | 17.955 | 456.06 | +/- 0.085 | +/- 2.16 | 0.139 | 3.53 | +/- 0.004 | +/- 0.10 | 18.233 | 463.12 |
| AS568-309 | 0.412 | 10.46 | +/- 0.005 | +/- 0.13 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 0.832 | 21.12 |
| AS568-310 | 0.475 | 12.07 | +/- 0.005 | +/- 0.13 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 0.895 | 22.73 |
| AS568-311 | 0.537 | 13.64 | +/- 0.007 | +/- 0.18 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 0.957 | 24.30 |
| AS568-312 | 0.600 | 15.24 | +/- 0.009 | +/- 0.23 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.020 | 25.90 |
| AS568-313 | 0.662 | 16.81 | +/- 0.009 | +/- 0.23 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.082 | 27.47 |
| AS568-314 | 0.725 | 18.42 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.145 | 29.08 |
| AS568-315 | 0.787 | 19.99 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.207 | 30.65 |
| AS568-316 | 0.850 | 21.59 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.270 | 32.25 |
| AS568-317 | 0.912 | 23.16 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.332 | 33.82 |
| AS568-318 | 0.975 | 24.77 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.395 | 35.43 |
| AS568-319 | 1.037 | 26.34 | +/- 0.010 | +/- 0.25 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.457 | 37.00 |
| AS568-320 | 1.100 | 27.94 | +/- 0.012 | +/- 0.30 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.520 | 38.60 |
| AS568-321 | 1.162 | 29.51 | +/- 0.012 | +/- 0.30 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.582 | 40.17 |
| AS568-322 | 1.225 | 31.12 | +/- 0.012 | +/- 0.30 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.645 | 41.78 |
| AS568-323 | 1.287 | 32.69 | +/- 0.012 | +/- 0.30 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.707 | 43.35 |
| AS568-324 | 1.350 | 34.29 | +/- 0.012 | +/- 0.30 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.770 | 44.95 |
| AS568-325 | 1.475 | 37.47 | +/- 0.015 | +/- 0.38 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 1.895 | 48.13 |
| AS568-326 | 1.600 | 40.64 | +/- 0.015 | +/- 0.38 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.020 | 51.30 |
| AS568-327 | 1.725 | 43.82 | +/- 0.015 | +/- 0.38 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.145 | 54.48 |
| AS568-328 | 1.850 | 46.99 | +/- 0.015 | +/- 0.38 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.270 | 57.65 |
| AS568-329 | 1.975 | 50.17 | +/- 0.018 | +/- 0.46 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.395 | 60.83 |
| AS568-330 | 2.100 | 53.34 | +/- 0.018 | +/- 0.46 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.520 | 64.00 |
| AS568-331 | 2.225 | 56.52 | +/- 0.018 | +/- 0.46 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.645 | 67.18 |
| AS568-332 | 2.350 | 59.69 | +/- 0.018 | +/- 0.46 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.770 | 70.35 |
| AS568-333 | 2.475 | 62.87 | +/- 0.020 | +/- 0.51 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 2.895 | 73.53 |
| AS568-334 | 2.600 | 66.04 | +/- 0.020 | +/- 0.51 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.020 | 76.70 |
| AS568-335 | 2.725 | 69.22 | +/- 0.020 | +/- 0.51 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.145 | 79.88 |
| AS568-336 | 2.850 | 72.39 | +/- 0.020 | +/- 0.51 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.270 | 83.05 |
| AS568-337 | 2.975 | 75.57 | +/- 0.024 | +/- 0.61 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.395 | 86.23 |
| AS568-338 | 3.100 | 78.74 | +/- 0.024 | +/- 0.61 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.520 | 89.40 |
| AS568-339 | 3.225 | 81.92 | +/- 0.024 | +/- 0.61 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.645 | 92.58 |
| AS568-340 | 3.350 | 85.09 | +/- 0.024 | +/- 0.61 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.770 | 95.75 |
| AS568-341 | 3.475 | 88.27 | +/- 0.024 | +/- 0.61 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 3.895 | 98.93 |
| AS568-342 | 3.600 | 91.44 | +/- 0.028 | +/- 0.71 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.020 | 102.10 |
| AS568-343 | 3.725 | 94.62 | +/- 0.028 | +/- 0.71 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.145 | 105.28 |
| AS568-344 | 3.850 | 97.79 | +/- 0.028 | +/- 0.71 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.270 | 108.45 |
| AS568-345 | 3.975 | 100.97 | +/- 0.028 | +/- 0.71 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.395 | 111.63 |
| AS568-346 | 4.100 | 104.14 | +/- 0.028 | +/- 0.71 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.520 | 114.80 |
| AS568-347 | 4.225 | 107.32 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.645 | 117.98 |
| AS568-348 | 4.350 | 110.49 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.770 | 121.15 |
| AS568-349 | 4.475 | 113.67 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 4.895 | 124.33 |
| AS568-350 | 4.600 | 116.84 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.020 | 127.50 |
| AS568-351 | 4.725 | 120.02 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.145 | 130.68 |
| AS568-352 | 4.850 | 123.19 | +/- 0.030 | +/- 0.76 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.270 | 133.85 |
| AS568-353 | 4.975 | 126.37 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.395 | 137.03 |
| AS568-354 | 5.100 | 129.54 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.520 | 140.20 |
| AS568-355 | 5.225 | 132.72 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.645 | 143.38 |
| AS568-356 | 5.350 | 135.89 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.770 | 146.55 |
| AS568-357 | 5.475 | 139.07 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 5.895 | 149.73 |
| AS568-358 | 5.600 | 142.24 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.020 | 152.90 |
| AS568-359 | 5.725 | 145.42 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.145 | 156.08 |
| AS568-360 | 5.850 | 148.59 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.270 | 159.25 |
| AS568-361 | 5.975 | 151.77 | +/- 0.037 | +/- 0.94 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.395 | 162.43 |
| AS568-362 | 6.225 | 158.12 | +/- 0.040 | +/- 1.02 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.645 | 168.78 |
| AS568-363 | 6.475 | 164.47 | +/- 0.040 | +/- 1.02 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 6.895 | 175.13 |
| AS568-364 | 6.725 | 170.82 | +/- 0.040 | +/- 1.02 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 7.145 | 181.48 |
| AS568-365 | 6.975 | 177.17 | +/- 0.040 | +/- 1.02 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 7.395 | 187.83 |
| AS568-366 | 7.225 | 183.52 | +/- 0.045 | +/- 1.14 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 7.645 | 194.18 |
| AS568-367 | 7.475 | 189.87 | +/- 0.045 | +/- 1.14 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 7.895 | 200.53 |
| AS568-368 | 7.725 | 196.22 | +/- 0.045 | +/- 1.14 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 8.145 | 206.88 |
| AS568-369 | 7.975 | 202.57 | +/- 0.045 | +/- 1.14 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 8.395 | 213.23 |
| AS568-370 | 8.225 | 208.92 | +/- 0.050 | +/- 1.27 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 8.645 | 219.58 |
| AS568-371 | 8.475 | 215.27 | +/- 0.050 | +/- 1.27 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 8.895 | 225.93 |
| AS568-372 | 8.725 | 221.62 | +/- 0.050 | +/- 1.27 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 9.145 | 232.28 |
| AS568-373 | 8.975 | 227.97 | +/- 0.050 | +/- 1.27 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 9.395 | 238.63 |
| AS568-374 | 9.225 | 234.32 | +/- 0.055 | +/- 1.40 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 9.645 | 244.98 |
| AS568-375 | 9.475 | 240.67 | +/- 0.055 | +/- 1.40 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 9.895 | 251.33 |
| AS568-376 | 9.725 | 247.02 | +/- 0.055 | +/- 1.40 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 10.145 | 257.68 |
| AS568-377 | 9.975 | 253.37 | +/- 0.055 | +/- 1.40 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 10.395 | 264.03 |
| AS568-378 | 10.475 | 266.07 | +/- 0.060 | +/- 1.52 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 10.895 | 276.73 |
| AS568-379 | 10.975 | 278.77 | +/- 0.060 | +/- 1.52 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 11.395 | 289.43 |
| AS568-380 | 11.475 | 291.47 | +/- 0.065 | +/- 1.65 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 11.895 | 302.13 |
| AS568-381 | 11.975 | 304.17 | +/- 0.065 | +/- 1.65 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 12.395 | 314.83 |
| AS568-382 | 12.975 | 329.57 | +/- 0.065 | +/- 1.65 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 13.395 | 340.23 |
| AS568-383 | 13.975 | 354.97 | +/- 0.070 | +/- 1.78 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 14.395 | 365.63 |
| AS568-384 | 14.975 | 380.37 | +/- 0.070 | +/- 1.78 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 15.395 | 391.03 |
| AS568-385 | 15.955 | 405.26 | +/- 0.075 | +/- 1.90 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 16.375 | 415.92 |
| AS568-386 | 16.955 | 430.66 | +/- 0.080 | +/- 2.03 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 17.375 | 441.32 |
| AS568-387 | 17.955 | 456.06 | +/- 0.085 | +/- 2.16 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 18.375 | 466.72 |
| AS568-388 | 18.955 | 481.46 | +/- 0.090 | +/- 2.29 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 19.375 | 492.12 |
| AS568-389 | 19.955 | 506.86 | +/- 0.095 | +/- 2.41 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 20.375 | 517.52 |
| AS568-390 | 20.955 | 532.26 | +/- 0.095 | +/- 2.41 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 21.375 | 542.92 |
| AS568-391 | 21.955 | 557.66 | +/- 0.100 | +/- 2.54 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 22.375 | 568.32 |
| AS568-392 | 22.940 | 582.68 | +/- 0.105 | +/- 2.67 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 23.360 | 593.34 |
| AS568-393 | 23.940 | 608.08 | +/- 0.110 | +/- 2.79 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 24.360 | 618.74 |
| AS568-394 | 24.940 | 633.48 | +/- 0.115 | +/- 2.92 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 25.360 | 644.14 |
| AS568-395 | 25.940 | 658.88 | +/- 0.120 | +/- 3.05 | 0.210 | 5.33 | +/- 0.005 | +/- 0.13 | 26.360 | 669.54 |
| AS568-425 | 4.475 | 113.67 | +/- 0.033 | +/- 0.84 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.025 | 127.65 |
| AS568-426 | 4.600 | 116.84 | +/- 0.033 | +/- 0.84 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.150 | 130.82 |
| AS568-427 | 4.725 | 120.02 | +/- 0.033 | +/- 0.84 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.275 | 134.00 |
| AS568-428 | 4.850 | 123.19 | +/- 0.033 | +/- 0.84 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.400 | 137.17 |
| AS568-429 | 4.975 | 126.37 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.525 | 140.35 |
| AS568-430 | 5.100 | 129.54 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.650 | 143.52 |
| AS568-431 | 5.225 | 132.72 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.775 | 146.70 |
| AS568-432 | 5.350 | 135.89 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 5.900 | 149.87 |
| AS568-433 | 5.475 | 139.07 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.025 | 153.05 |
| AS568-434 | 5.600 | 142.24 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.150 | 156.22 |
| AS568-435 | 5.725 | 145.42 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.275 | 159.40 |
| AS568-436 | 5.850 | 148.59 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.400 | 162.57 |
| AS568-437 | 5.975 | 151.77 | +/- 0.037 | +/- 0.94 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.525 | 165.75 |
| AS568-438 | 6.225 | 158.12 | +/- 0.040 | +/- 1.02 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 6.775 | 172.10 |
| AS568-439 | 6.475 | 164.47 | +/- 0.040 | +/- 1.02 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 7.025 | 178.45 |
| AS568-440 | 6.725 | 170.82 | +/- 0.040 | +/- 1.02 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 7.275 | 184.80 |
| AS568-441 | 6.975 | 177.17 | +/- 0.040 | +/- 1.02 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 7.525 | 191.15 |
| AS568-442 | 7.225 | 183.52 | +/- 0.045 | +/- 1.14 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 7.775 | 197.50 |
| AS568-443 | 7.475 | 189.87 | +/- 0.045 | +/- 1.14 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 8.025 | 203.85 |
| AS568-444 | 7.725 | 196.22 | +/- 0.045 | +/- 1.14 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 8.275 | 210.20 |
| AS568-445 | 7.975 | 202.57 | +/- 0.045 | +/- 1.14 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 8.525 | 216.55 |
| AS568-446 | 8.475 | 215.27 | +/- 0.055 | +/- 1.40 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 9.025 | 229.25 |
| AS568-447 | 8.975 | 227.97 | +/- 0.055 | +/- 1.40 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 9.525 | 241.95 |
| AS568-448 | 9.475 | 240.67 | +/- 0.055 | +/- 1.40 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 10.025 | 254.65 |
| AS568-449 | 9.975 | 253.37 | +/- 0.055 | +/- 1.40 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 10.525 | 267.35 |
| AS568-450 | 10.475 | 266.07 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 11.025 | 280.05 |
| AS568-451 | 10.975 | 278.77 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 11.525 | 292.75 |
| AS568-452 | 11.475 | 291.47 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 12.025 | 305.45 |
| AS568-453 | 11.975 | 304.17 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 12.525 | 318.15 |
| AS568-454 | 12.475 | 316.87 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 13.025 | 330.85 |
| AS568-455 | 12.975 | 329.57 | +/- 0.060 | +/- 1.52 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 13.525 | 343.55 |
| AS568-456 | 13.475 | 342.27 | +/- 0.070 | +/- 1.78 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 14.025 | 356.25 |
| AS568-457 | 13.975 | 354.97 | +/- 0.070 | +/- 1.78 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 14.525 | 368.95 |
| AS568-458 | 14.475 | 367.67 | +/- 0.070 | +/- 1.78 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 15.025 | 381.65 |
| AS568-459 | 14.975 | 380.37 | +/- 0.070 | +/- 1.78 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 15.525 | 394.35 |
| AS568-460 | 15.475 | 393.07 | +/- 0.070 | +/- 1.78 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 16.025 | 407.05 |
| AS568-461 | 15.955 | 405.26 | +/- 0.075 | +/- 1.90 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 16.505 | 419.24 |
| AS568-462 | 16.455 | 417.96 | +/- 0.075 | +/- 1.90 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 17.005 | 431.94 |
| AS568-463 | 16.955 | 430.66 | +/- 0.080 | +/- 2.03 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 17.505 | 444.64 |
| AS568-464 | 17.455 | 443.36 | +/- 0.085 | +/- 2.16 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 18.005 | 457.34 |
| AS568-465 | 17.955 | 456.06 | +/- 0.085 | +/- 2.16 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 18.505 | 470.04 |
| AS568-466 | 18.455 | 468.76 | +/- 0.085 | +/- 2.16 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 19.005 | 482.74 |
| AS568-467 | 18.955 | 481.46 | +/- 0.090 | +/- 2.29 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 19.505 | 495.44 |
| AS568-468 | 19.455 | 494.16 | +/- 0.090 | +/- 2.29 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 20.005 | 508.14 |
| AS568-469 | 19.955 | 506.86 | +/- 0.095 | +/- 2.41 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 20.505 | 520.84 |
| AS568-470 | 20.955 | 532.26 | +/- 0.095 | +/- 2.41 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 21.505 | 546.24 |
| AS568-471 | 21.955 | 557.66 | +/- 0.100 | +/- 2.54 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 22.505 | 571.64 |
| AS568-472 | 22.940 | 582.68 | +/- 0.105 | +/- 2.67 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 23.490 | 596.66 |
| AS568-473 | 23.940 | 608.08 | +/- 0.110 | +/- 2.79 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 24.490 | 622.06 |
| AS568-474 | 24.940 | 633.48 | +/- 0.115 | +/- 2.92 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 25.490 | 647.46 |
| AS568-475 | 25.940 | 658.88 | +/- 0.120 | +/- 3.05 | 0.275 | 6.99 | +/- 0.006 | +/- 0.15 | 26.490 | 672.86 |
| AS568-901 | 0.185 | 4.70 | +/- 0.005 | +/- 0.13 | 0.056 | 1.42 | +/- 0.003 | +/- 0.08 | 0.297 | 7.54 |
| AS568-902 | 0.239 | 6.07 | +/- 0.005 | +/- 0.13 | 0.064 | 1.63 | +/- 0.003 | +/- 0.08 | 0.367 | 9.33 |
| AS568-903 | 0.301 | 7.65 | +/- 0.005 | +/- 0.13 | 0.064 | 1.63 | +/- 0.003 | +/- 0.08 | 0.429 | 10.91 |
| AS568-904 | 0.351 | 8.92 | +/- 0.005 | +/- 0.13 | 0.072 | 1.83 | +/- 0.003 | +/- 0.08 | 0.495 | 12.58 |
| AS568-905 | 0.414 | 10.52 | +/- 0.005 | +/- 0.13 | 0.072 | 1.83 | +/- 0.003 | +/- 0.08 | 0.558 | 14.18 |
| AS568-906 | 0.468 | 11.89 | +/- 0.005 | +/- 0.13 | 0.078 | 1.98 | +/- 0.003 | +/- 0.08 | 0.624 | 15.85 |
| AS568-907 | 0.530 | 13.46 | +/- 0.007 | +/- 0.18 | 0.082 | 2.08 | +/- 0.003 | +/- 0.08 | 0.694 | 17.62 |
| AS568-908 | 0.644 | 16.36 | +/- 0.009 | +/- 0.23 | 0.087 | 2.21 | +/- 0.003 | +/- 0.08 | 0.818 | 20.78 |
| AS568-909 | 0.706 | 17.93 | +/- 0.009 | +/- 0.23 | 0.097 | 2.46 | +/- 0.003 | +/- 0.08 | 0.900 | 22.85 |
| AS568-910 | 0.755 | 19.18 | +/- 0.009 | +/- 0.23 | 0.097 | 2.46 | +/- 0.003 | +/- 0.08 | 0.949 | 24.10 |
| AS568-911 | 0.863 | 21.92 | +/- 0.009 | +/- 0.23 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.095 | 27.82 |
| AS568-912 | 0.924 | 23.47 | +/- 0.009 | +/- 0.23 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.156 | 29.37 |
| AS568-913 | 0.986 | 25.04 | +/- 0.010 | +/- 0.25 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.218 | 30.94 |
| AS568-914 | 1.047 | 26.59 | +/- 0.010 | +/- 0.25 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.279 | 32.49 |
| AS568-916 | 1.171 | 29.74 | +/- 0.010 | +/- 0.25 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.403 | 35.64 |
| AS568-918 | 1.355 | 34.42 | +/- 0.012 | +/- 0.30 | 0.116 | 2.95 | +/- 0.004 | +/- 0.10 | 1.587 | 40.32 |
| AS568-920 | 1.475 | 37.47 | +/- 0.014 | +/- 0.36 | 0.118 | 3.00 | +/- 0.004 | +/- 0.10 | 1.711 | 43.47 |
| AS568-924 | 1.720 | 43.69 | +/- 0.014 | +/- 0.36 | 0.118 | 3.00 | +/- 0.004 | +/- 0.10 | 1.956 | 49.69 |
| AS568-928 | 2.090 | 53.09 | +/- 0.018 | +/- 0.46 | 0.118 | 3.00 | +/- 0.004 | +/- 0.10 | 2.326 | 59.09 |
| AS568-932 | 2.337 | 59.36 | +/- 0.018 | +/- 0.46 | 0.118 | 3.00 | +/- 0.004 | +/- 0.10 | 2.573 | 65.36 |
Source: Conquest Seal's AS568 size records, checked field by field against the AS568 charts published in the Parker® O-Ring Handbook ORD 5700 and by American Rubber Corp. (read 2026-09-06); inch values are authoritative and millimeters are converted at 25.4.
- Size standard
- AS568 dash -001 to -475 plus boss seals -901 to -932, one page per size on this site
- Cross sections
- 0.070, 0.103, 0.139, 0.210 and 0.275 in (series 0xx to 4xx)
- Inside diameter
- 0.029 in to 25.94 in
- Metric sizes
- ISO 3601-1 groups A to E, 1.8 mm to 7.0 mm cross section
- Tolerances
- plus or minus 0.004 in (ID) and 0.003 in (CS) at -001; plus or minus 0.033 in (-425) to 0.120 in (-475) on ID and 0.006 in on CS in the 4xx series; every size page lists its own
- CAD files
- STEP, DXF and PDF on every AS568 size page
How the AS568 dash number maps to metric sizes
The AS568 dash number is a catalog lookup, not a formula. The first digit names the cross-section series, 0xx at 0.070 in through 4xx at 0.275 in, and the rest of the number is the position in that series, so -214 and -216 share a cross section but not an inside diameter. Three sizes, -001 to -003, sit below the 0.070 in cord and have no metric counterpart. The 900 series is separate: 20 straight-thread tube boss gaskets from -901 to -932 that ISO 3601-1 does not carry.
ISO 3601-1 groups its metric cross sections A to E, and the five groups sit close enough to the five AS568 series that the cords interchange: 1.8 mm against 1.78 mm, 2.65 mm against 2.62 mm, 3.55 mm against 3.53 mm, 5.3 mm against 5.33 mm and 7.0 mm against 6.99 mm. For the inch-derived sizes the ISO 3601-1 size code is the AS568 dash number itself. JIS B 2401 is a different system: its number is a catalog index, never the inside diameter, and only its 3.5 mm cord overlaps an AS568 section cleanly.
Tolerances grow with the size. Dash -001 carries an inside-diameter tolerance of plus or minus 0.004 in and a cross-section tolerance of plus or minus 0.003 in; the 4xx series runs from plus or minus 0.033 in (-425) to 0.120 in (-475) on inside diameter, with plus or minus 0.006 in on cross section. Every size page on this site lists both tolerances in inches and millimeters next to the STEP, DXF and PDF files.
To order, send the dash number, the compound and the quantity. If the print carries a metric size or a JIS number, send that instead and we cross it to the nearest AS568 size or quote the metric ring.
| AS568 series | AS568 cross section | ISO 3601-1 group | ISO 3601-1 cross section | JIS B 2401 nearest cord | Cords interchange (AS568 to ISO / to JIS) |
|---|---|---|---|---|---|
| 0xx | 0.070 in (1.78 mm) | A | 1.80 mm | 1.9 mm | yes / marginal |
| 1xx | 0.103 in (2.62 mm) | B | 2.65 mm | 2.4 mm | yes / no |
| 2xx | 0.139 in (3.53 mm) | C | 3.55 mm | 3.5 mm | yes / yes |
| 3xx | 0.210 in (5.33 mm) | D | 5.30 mm | 5.7 mm | yes / no |
| 4xx | 0.275 in (6.99 mm) | E | 7.00 mm | 6.0 mm | yes / no |
AS568 to metric
The six cross-section series, and the nearest ISO 3601-1 size
The first digit of a dash number names its cross-section series, and each of the five general-purpose series sits close enough to an ISO 3601-1 group that the cords interchange. The inside diameter is the open question: ISO 3601-1 lists metric diameters, so the tables below give the nearest ISO 3601-1 size and the difference in inside diameter, in millimeters and as a percentage, as a plain reading. The print governs; any change of size or standard is the buyer's engineering decision.
| Series | Nominal CS in | CS mm | Dash range | Sizes | ISO 3601-1 group | ISO CS mm |
|---|---|---|---|---|---|---|
| 0xx | 0.070 | 1.78 | -004 to -050 (-001 to -003 sit below this cord at 0.040, 0.050 and 0.060 in and have no ISO 3601-1 counterpart) | 47 | A | 1.80 |
| 1xx | 0.103 | 2.62 | -102 to -178 | 77 | B | 2.65 |
| 2xx | 0.139 | 3.53 | -201 to -284 | 84 | C | 3.55 |
| 3xx | 0.210 | 5.33 | -309 to -395 | 87 | D | 5.30 |
| 4xx | 0.275 | 6.99 | -425 to -475 | 51 | E | 7.00 |
| 9xx | 0.056 to 0.118 in (1.42 to 3.00 mm), varies by size | varies | -901 to -932 (straight-thread tube boss gaskets; not carried by ISO 3601-1) | 20 | none | none |
| Dash | ID in | CS in | ID mm | CS mm | Nearest ISO 3601-1 | ISO ID mm | ISO CS mm | ID difference mm | ID difference % |
|---|---|---|---|---|---|---|---|---|---|
| AS568-006 | 0.114 | 0.070 | 2.90 | 1.78 | A0028 | 2.80 | 1.80 | -0.10 | -3.45 |
| AS568-010 | 0.239 | 0.070 | 6.07 | 1.78 | A0060 | 6.00 | 1.80 | -0.07 | -1.15 |
| AS568-050 | 5.239 | 0.070 | 133.07 | 1.78 | A1250 | 125.00 | 1.80 | -8.07 | -6.06 |
| AS568-111 | 0.424 | 0.103 | 10.77 | 2.62 | B0106 | 10.60 | 2.65 | -0.17 | -1.58 |
| AS568-115 | 0.674 | 0.103 | 17.12 | 2.62 | B0170 | 17.00 | 2.65 | -0.12 | -0.70 |
| AS568-210 | 0.734 | 0.139 | 18.64 | 3.53 | C0190 | 19.00 | 3.55 | +0.36 | +1.93 |
| AS568-214 | 0.984 | 0.139 | 25.00 | 3.53 | C0250 | 25.00 | 3.55 | 0.00 | 0.00 |
| AS568-225 | 1.859 | 0.139 | 47.22 | 3.53 | C0475 | 47.50 | 3.55 | +0.28 | +0.59 |
| AS568-325 | 1.475 | 0.210 | 37.47 | 5.33 | D0375 | 37.50 | 5.30 | +0.03 | +0.08 |
A negative difference means the nearest metric ring's inside diameter is smaller than the AS568 size; a positive one, larger. The print governs; whether a different size or standard can be used is the buyer's engineering decision, not a reading from this table. The full metric list is on the metric size chart, and the metric sizes guide explains the ISO 3601-1 code.
More charts
Metric, mil-spec, groove design and the 2-XXX to AS568 cross-reference
AS568 Sizes in Millimeters
The AS568 inch sizes with inside diameter and cross-section converted to millimeters, including the tube fitting boss sizes.
Mil-Spec O-Ring Chart
The military and SAE O-ring specifications behind mil-spec callouts: each document, its part families, its material and its current status.
2-XXX to AS568 Cross Reference
Translate a 2-series O-ring number to its AS568 dash size and standard dimensions.
Parker is a trademark of Parker Hannifin Corporation. No affiliation or endorsement is implied.
Frequently asked
How many sizes does AS568 define?
The current revision, AS568F, lists 369 sizes: 349 general-purpose rings in the 0xx to 4xx series plus 20 boss gaskets in the 9xx series for straight-thread tube ports. The 9xx rings have their own sections, for example -901 at 0.185 in inside diameter and 0.056 in cross section, and they are not part of the metric standard. This site carries a page for every one of them.
What do the nominal fractions next to a dash number mean?
They are the nominal inside diameter and cross section in inch fractions, and they are not the ordering dimensions. A -214 is nominally 1 in by 1/8 in but measures 0.984 in inside diameter and 0.139 in cross section, and a -425 is nominally 4-1/2 in by 1/4 in against an actual 4.475 in by 0.275 in. Order by the dash number or by the actual dimensions in inches or millimeters.
How deep and wide should the groove be for a given cross section?
The gland depends on the seal type, not just the section. For a 0.139 in (2xx) ring the published range on file gives a static face-seal gland depth of 0.101 to 0.107 in with a groove width of 0.177 to 0.187 in for liquids, and a reciprocating gland depth of 0.121 to 0.123 in with a groove width of 0.187 to 0.192 in when no back-up ring is fitted. Those are manufacturer guideline ranges; where the print calls out AS4716, AS5857 or ISO 3601-2, that standard governs.
My drawing says 2-214 or BS 1806 -214. Is that the same as AS568-214?
Yes. The 2-xxx prefix is a manufacturer's numbering that carries the AS568 dash number, and BS 1806 uses the same dash numbers and the same dimensions for every size that AS568 lists. The one trap is a BS 1806 number outside -001 to -475, in the 5xx, 6xx or 8xx blocks, which are between sizes that AS568 does not define and are quoted as non-standard rings.
Can you supply a size that is not on the AS568 chart?
Yes. Non-standard sizes come three ways: an ISO 3601 metric size, a between size from an older inch series such as BS 1806, or a ring molded to your inside diameter and cross section. Molded specials come from the molders we source from; send the two dimensions, the compound and the quantity and we quote the closest standard size alongside the exact one.
Related guides
Send the dash number, the compound and the quantity
We stock every AS568 size; any size is quoted in the compound your print calls out. A Conquest representative replies.
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