Chart, AS568

2-XXX to AS568 Cross Reference

Translate a 2-series O-ring number to its AS568 dash size and standard dimensions.

Parker® 2-series O-ring numbers map directly to AS568 dash sizes: Parker 2-214 is the AS568-214 size, and so on through -395, the last size in this table. Use it to translate a 2-series callout into the standard dimensions; the compound is the one your print names.

Tolerances for every size, and the 4xx and boss sizes, are on the full AS568 chart. Have a 2-series number? Request a quote with the compound your print names and we quote the AS568 size.

Source: Parker O-Ring Handbook ORD 5700, 2021 printing, section IX, the Series 2-XXX O-ring size tables, pages 9-2 to 9-9, read 2026-09-06.

Every row's inch and millimeter values match those tables.

Parker No.	AS568 Dash	ID (in)	CS (in)	ID (mm)	CS (mm)
2-001	AS568-001	0.029	0.04	0.74	1.02
2-002	AS568-002	0.042	0.05	1.07	1.27
2-003	AS568-003	0.056	0.06	1.42	1.52
2-004	AS568-004	0.07	0.07	1.78	1.78
2-005	AS568-005	0.101	0.07	2.57	1.78
2-006	AS568-006	0.114	0.07	2.9	1.78
2-007	AS568-007	0.145	0.07	3.68	1.78
2-008	AS568-008	0.176	0.07	4.47	1.78
2-009	AS568-009	0.208	0.07	5.28	1.78
2-010	AS568-010	0.239	0.07	6.07	1.78
2-011	AS568-011	0.301	0.07	7.65	1.78
2-012	AS568-012	0.364	0.07	9.25	1.78
2-013	AS568-013	0.426	0.07	10.82	1.78
2-014	AS568-014	0.489	0.07	12.42	1.78
2-015	AS568-015	0.551	0.07	14.0	1.78
2-016	AS568-016	0.614	0.07	15.6	1.78
2-017	AS568-017	0.676	0.07	17.17	1.78
2-018	AS568-018	0.739	0.07	18.77	1.78
2-019	AS568-019	0.801	0.07	20.35	1.78
2-020	AS568-020	0.864	0.07	21.95	1.78
2-021	AS568-021	0.926	0.07	23.52	1.78
2-022	AS568-022	0.989	0.07	25.12	1.78
2-023	AS568-023	1.051	0.07	26.7	1.78
2-024	AS568-024	1.114	0.07	28.3	1.78
2-025	AS568-025	1.176	0.07	29.87	1.78
2-026	AS568-026	1.239	0.07	31.47	1.78
2-027	AS568-027	1.301	0.07	33.05	1.78
2-028	AS568-028	1.364	0.07	34.65	1.78
2-029	AS568-029	1.489	0.07	37.82	1.78
2-030	AS568-030	1.614	0.07	41.0	1.78
2-031	AS568-031	1.739	0.07	44.17	1.78
2-032	AS568-032	1.864	0.07	47.35	1.78
2-033	AS568-033	1.989	0.07	50.52	1.78
2-034	AS568-034	2.114	0.07	53.7	1.78
2-035	AS568-035	2.239	0.07	56.87	1.78
2-036	AS568-036	2.364	0.07	60.05	1.78
2-037	AS568-037	2.489	0.07	63.22	1.78
2-038	AS568-038	2.614	0.07	66.4	1.78
2-039	AS568-039	2.739	0.07	69.57	1.78
2-040	AS568-040	2.864	0.07	72.75	1.78
2-041	AS568-041	2.989	0.07	75.92	1.78
2-042	AS568-042	3.239	0.07	82.27	1.78
2-043	AS568-043	3.489	0.07	88.62	1.78
2-044	AS568-044	3.739	0.07	94.97	1.78
2-045	AS568-045	3.989	0.07	101.32	1.78
2-046	AS568-046	4.239	0.07	107.67	1.78
2-047	AS568-047	4.489	0.07	114.02	1.78
2-048	AS568-048	4.739	0.07	120.37	1.78
2-049	AS568-049	4.989	0.07	126.72	1.78
2-050	AS568-050	5.239	0.07	133.07	1.78
2-102	AS568-102	0.049	0.103	1.24	2.62
2-103	AS568-103	0.081	0.103	2.06	2.62
2-104	AS568-104	0.112	0.103	2.84	2.62
2-105	AS568-105	0.143	0.103	3.63	2.62
2-106	AS568-106	0.174	0.103	4.42	2.62
2-107	AS568-107	0.206	0.103	5.23	2.62
2-108	AS568-108	0.237	0.103	6.02	2.62
2-109	AS568-109	0.299	0.103	7.59	2.62
2-110	AS568-110	0.362	0.103	9.19	2.62
2-111	AS568-111	0.424	0.103	10.77	2.62
2-112	AS568-112	0.487	0.103	12.37	2.62
2-113	AS568-113	0.549	0.103	13.94	2.62
2-114	AS568-114	0.612	0.103	15.54	2.62
2-115	AS568-115	0.674	0.103	17.12	2.62
2-116	AS568-116	0.737	0.103	18.72	2.62
2-117	AS568-117	0.799	0.103	20.29	2.62
2-118	AS568-118	0.862	0.103	21.89	2.62
2-119	AS568-119	0.924	0.103	23.47	2.62
2-120	AS568-120	0.987	0.103	25.07	2.62
2-121	AS568-121	1.049	0.103	26.64	2.62
2-122	AS568-122	1.112	0.103	28.24	2.62
2-123	AS568-123	1.174	0.103	29.82	2.62
2-124	AS568-124	1.237	0.103	31.42	2.62
2-125	AS568-125	1.299	0.103	32.99	2.62
2-126	AS568-126	1.362	0.103	34.59	2.62
2-127	AS568-127	1.424	0.103	36.17	2.62
2-128	AS568-128	1.487	0.103	37.77	2.62
2-129	AS568-129	1.549	0.103	39.34	2.62
2-130	AS568-130	1.612	0.103	40.94	2.62
2-131	AS568-131	1.674	0.103	42.52	2.62
2-132	AS568-132	1.737	0.103	44.12	2.62
2-133	AS568-133	1.799	0.103	45.69	2.62
2-134	AS568-134	1.862	0.103	47.29	2.62
2-135	AS568-135	1.925	0.103	48.9	2.62
2-136	AS568-136	1.987	0.103	50.47	2.62
2-137	AS568-137	2.05	0.103	52.07	2.62
2-138	AS568-138	2.112	0.103	53.64	2.62
2-139	AS568-139	2.175	0.103	55.25	2.62
2-140	AS568-140	2.237	0.103	56.82	2.62
2-141	AS568-141	2.3	0.103	58.42	2.62
2-142	AS568-142	2.362	0.103	59.99	2.62
2-143	AS568-143	2.425	0.103	61.6	2.62
2-144	AS568-144	2.487	0.103	63.17	2.62
2-145	AS568-145	2.55	0.103	64.77	2.62
2-146	AS568-146	2.612	0.103	66.34	2.62
2-147	AS568-147	2.675	0.103	67.95	2.62
2-148	AS568-148	2.737	0.103	69.52	2.62
2-149	AS568-149	2.8	0.103	71.12	2.62
2-150	AS568-150	2.862	0.103	72.69	2.62
2-151	AS568-151	2.987	0.103	75.87	2.62
2-152	AS568-152	3.237	0.103	82.22	2.62
2-153	AS568-153	3.487	0.103	88.57	2.62
2-154	AS568-154	3.737	0.103	94.92	2.62
2-155	AS568-155	3.987	0.103	101.27	2.62
2-156	AS568-156	4.237	0.103	107.62	2.62
2-157	AS568-157	4.487	0.103	113.97	2.62
2-158	AS568-158	4.737	0.103	120.32	2.62
2-159	AS568-159	4.987	0.103	126.67	2.62
2-160	AS568-160	5.237	0.103	133.02	2.62
2-161	AS568-161	5.487	0.103	139.37	2.62
2-162	AS568-162	5.737	0.103	145.72	2.62
2-163	AS568-163	5.987	0.103	152.07	2.62
2-164	AS568-164	6.237	0.103	158.42	2.62
2-165	AS568-165	6.487	0.103	164.77	2.62
2-166	AS568-166	6.737	0.103	171.12	2.62
2-167	AS568-167	6.987	0.103	177.47	2.62
2-168	AS568-168	7.237	0.103	183.82	2.62
2-169	AS568-169	7.487	0.103	190.17	2.62
2-170	AS568-170	7.737	0.103	196.52	2.62
2-171	AS568-171	7.987	0.103	202.87	2.62
2-172	AS568-172	8.237	0.103	209.22	2.62
2-173	AS568-173	8.487	0.103	215.57	2.62
2-174	AS568-174	8.737	0.103	221.92	2.62
2-175	AS568-175	8.987	0.103	228.27	2.62
2-176	AS568-176	9.237	0.103	234.62	2.62
2-177	AS568-177	9.487	0.103	240.97	2.62
2-178	AS568-178	9.737	0.103	247.32	2.62
2-201	AS568-201	0.171	0.139	4.34	3.53
2-202	AS568-202	0.234	0.139	5.94	3.53
2-203	AS568-203	0.296	0.139	7.52	3.53
2-204	AS568-204	0.359	0.139	9.12	3.53
2-205	AS568-205	0.421	0.139	10.69	3.53
2-206	AS568-206	0.484	0.139	12.29	3.53
2-207	AS568-207	0.546	0.139	13.87	3.53
2-208	AS568-208	0.609	0.139	15.47	3.53
2-209	AS568-209	0.671	0.139	17.04	3.53
2-210	AS568-210	0.734	0.139	18.64	3.53
2-211	AS568-211	0.796	0.139	20.22	3.53
2-212	AS568-212	0.859	0.139	21.82	3.53
2-213	AS568-213	0.921	0.139	23.39	3.53
2-214	AS568-214	0.984	0.139	24.99	3.53
2-215	AS568-215	1.046	0.139	26.57	3.53
2-216	AS568-216	1.109	0.139	28.17	3.53
2-217	AS568-217	1.171	0.139	29.74	3.53
2-218	AS568-218	1.234	0.139	31.34	3.53
2-219	AS568-219	1.296	0.139	32.92	3.53
2-220	AS568-220	1.359	0.139	34.52	3.53
2-221	AS568-221	1.421	0.139	36.09	3.53
2-222	AS568-222	1.484	0.139	37.69	3.53
2-223	AS568-223	1.609	0.139	40.87	3.53
2-224	AS568-224	1.734	0.139	44.04	3.53
2-225	AS568-225	1.859	0.139	47.22	3.53
2-226	AS568-226	1.984	0.139	50.39	3.53
2-227	AS568-227	2.109	0.139	53.57	3.53
2-228	AS568-228	2.234	0.139	56.74	3.53
2-229	AS568-229	2.359	0.139	59.92	3.53
2-230	AS568-230	2.484	0.139	63.09	3.53
2-231	AS568-231	2.609	0.139	66.27	3.53
2-232	AS568-232	2.734	0.139	69.44	3.53
2-233	AS568-233	2.859	0.139	72.62	3.53
2-234	AS568-234	2.984	0.139	75.79	3.53
2-235	AS568-235	3.109	0.139	78.97	3.53
2-236	AS568-236	3.234	0.139	82.14	3.53
2-237	AS568-237	3.359	0.139	85.32	3.53
2-238	AS568-238	3.484	0.139	88.49	3.53
2-239	AS568-239	3.609	0.139	91.67	3.53
2-240	AS568-240	3.734	0.139	94.84	3.53
2-241	AS568-241	3.859	0.139	98.02	3.53
2-242	AS568-242	3.984	0.139	101.19	3.53
2-243	AS568-243	4.109	0.139	104.37	3.53
2-244	AS568-244	4.234	0.139	107.54	3.53
2-245	AS568-245	4.359	0.139	110.72	3.53
2-246	AS568-246	4.484	0.139	113.89	3.53
2-247	AS568-247	4.609	0.139	117.07	3.53
2-248	AS568-248	4.734	0.139	120.24	3.53
2-249	AS568-249	4.859	0.139	123.42	3.53
2-250	AS568-250	4.984	0.139	126.59	3.53
2-251	AS568-251	5.109	0.139	129.77	3.53
2-252	AS568-252	5.234	0.139	132.94	3.53
2-253	AS568-253	5.359	0.139	136.12	3.53
2-254	AS568-254	5.484	0.139	139.29	3.53
2-255	AS568-255	5.609	0.139	142.47	3.53
2-256	AS568-256	5.734	0.139	145.64	3.53
2-257	AS568-257	5.859	0.139	148.82	3.53
2-258	AS568-258	5.984	0.139	151.99	3.53
2-259	AS568-259	6.234	0.139	158.34	3.53
2-260	AS568-260	6.484	0.139	164.69	3.53
2-261	AS568-261	6.734	0.139	171.04	3.53
2-262	AS568-262	6.984	0.139	177.39	3.53
2-263	AS568-263	7.234	0.139	183.74	3.53
2-264	AS568-264	7.484	0.139	190.09	3.53
2-265	AS568-265	7.734	0.139	196.44	3.53
2-266	AS568-266	7.984	0.139	202.79	3.53
2-267	AS568-267	8.234	0.139	209.14	3.53
2-268	AS568-268	8.484	0.139	215.49	3.53
2-269	AS568-269	8.734	0.139	221.84	3.53
2-270	AS568-270	8.984	0.139	228.19	3.53
2-271	AS568-271	9.234	0.139	234.54	3.53
2-272	AS568-272	9.484	0.139	240.89	3.53
2-273	AS568-273	9.734	0.139	247.24	3.53
2-274	AS568-274	9.984	0.139	253.59	3.53
2-275	AS568-275	10.484	0.139	266.29	3.53
2-276	AS568-276	10.984	0.139	278.99	3.53
2-277	AS568-277	11.484	0.139	291.69	3.53
2-278	AS568-278	11.984	0.139	304.39	3.53
2-279	AS568-279	12.984	0.139	329.79	3.53
2-280	AS568-280	13.984	0.139	355.19	3.53
2-281	AS568-281	14.984	0.139	380.59	3.53
2-282	AS568-282	15.955	0.139	405.26	3.53
2-283	AS568-283	16.955	0.139	430.66	3.53
2-284	AS568-284	17.955	0.139	456.06	3.53
2-309	AS568-309	0.412	0.21	10.46	5.33
2-310	AS568-310	0.475	0.21	12.07	5.33
2-311	AS568-311	0.537	0.21	13.64	5.33
2-312	AS568-312	0.6	0.21	15.24	5.33
2-313	AS568-313	0.662	0.21	16.81	5.33
2-314	AS568-314	0.725	0.21	18.42	5.33
2-315	AS568-315	0.787	0.21	19.99	5.33
2-316	AS568-316	0.85	0.21	21.59	5.33
2-317	AS568-317	0.912	0.21	23.16	5.33
2-318	AS568-318	0.975	0.21	24.77	5.33
2-319	AS568-319	1.037	0.21	26.34	5.33
2-320	AS568-320	1.1	0.21	27.94	5.33
2-321	AS568-321	1.162	0.21	29.51	5.33
2-322	AS568-322	1.225	0.21	31.12	5.33
2-323	AS568-323	1.287	0.21	32.69	5.33
2-324	AS568-324	1.35	0.21	34.29	5.33
2-325	AS568-325	1.475	0.21	37.47	5.33
2-326	AS568-326	1.6	0.21	40.64	5.33
2-327	AS568-327	1.725	0.21	43.82	5.33
2-328	AS568-328	1.85	0.21	46.99	5.33
2-329	AS568-329	1.975	0.21	50.17	5.33
2-330	AS568-330	2.1	0.21	53.34	5.33
2-331	AS568-331	2.225	0.21	56.52	5.33
2-332	AS568-332	2.35	0.21	59.69	5.33
2-333	AS568-333	2.475	0.21	62.87	5.33
2-334	AS568-334	2.6	0.21	66.04	5.33
2-335	AS568-335	2.725	0.21	69.22	5.33
2-336	AS568-336	2.85	0.21	72.39	5.33
2-337	AS568-337	2.975	0.21	75.57	5.33
2-338	AS568-338	3.1	0.21	78.74	5.33
2-339	AS568-339	3.225	0.21	81.92	5.33
2-340	AS568-340	3.35	0.21	85.09	5.33
2-341	AS568-341	3.475	0.21	88.27	5.33
2-342	AS568-342	3.6	0.21	91.44	5.33
2-343	AS568-343	3.725	0.21	94.62	5.33
2-344	AS568-344	3.85	0.21	97.79	5.33
2-345	AS568-345	3.975	0.21	100.97	5.33
2-346	AS568-346	4.1	0.21	104.14	5.33
2-347	AS568-347	4.225	0.21	107.32	5.33
2-348	AS568-348	4.35	0.21	110.49	5.33
2-349	AS568-349	4.475	0.21	113.67	5.33
2-350	AS568-350	4.6	0.21	116.84	5.33
2-351	AS568-351	4.725	0.21	120.02	5.33
2-352	AS568-352	4.85	0.21	123.19	5.33
2-353	AS568-353	4.975	0.21	126.37	5.33
2-354	AS568-354	5.1	0.21	129.54	5.33
2-355	AS568-355	5.225	0.21	132.72	5.33
2-356	AS568-356	5.35	0.21	135.89	5.33
2-357	AS568-357	5.475	0.21	139.07	5.33
2-358	AS568-358	5.6	0.21	142.24	5.33
2-359	AS568-359	5.725	0.21	145.42	5.33
2-360	AS568-360	5.85	0.21	148.59	5.33
2-361	AS568-361	5.975	0.21	151.77	5.33
2-362	AS568-362	6.225	0.21	158.12	5.33
2-363	AS568-363	6.475	0.21	164.47	5.33
2-364	AS568-364	6.725	0.21	170.82	5.33
2-365	AS568-365	6.975	0.21	177.17	5.33
2-366	AS568-366	7.225	0.21	183.52	5.33
2-367	AS568-367	7.475	0.21	189.87	5.33
2-368	AS568-368	7.725	0.21	196.22	5.33
2-369	AS568-369	7.975	0.21	202.57	5.33
2-370	AS568-370	8.225	0.21	208.92	5.33
2-371	AS568-371	8.475	0.21	215.27	5.33
2-372	AS568-372	8.725	0.21	221.62	5.33
2-373	AS568-373	8.975	0.21	227.97	5.33
2-374	AS568-374	9.225	0.21	234.32	5.33
2-375	AS568-375	9.475	0.21	240.67	5.33
2-376	AS568-376	9.725	0.21	247.02	5.33
2-377	AS568-377	9.975	0.21	253.37	5.33
2-378	AS568-378	10.475	0.21	266.07	5.33
2-379	AS568-379	10.975	0.21	278.77	5.33
2-380	AS568-380	11.475	0.21	291.47	5.33
2-381	AS568-381	11.975	0.21	304.17	5.33
2-382	AS568-382	12.975	0.21	329.57	5.33
2-383	AS568-383	13.975	0.21	354.97	5.33
2-384	AS568-384	14.975	0.21	380.37	5.33
2-385	AS568-385	15.955	0.21	405.26	5.33
2-386	AS568-386	16.955	0.21	430.66	5.33
2-387	AS568-387	17.955	0.21	456.06	5.33
2-388	AS568-388	18.955	0.21	481.46	5.33
2-389	AS568-389	19.955	0.21	506.86	5.33
2-390	AS568-390	20.955	0.21	532.26	5.33
2-391	AS568-391	21.955	0.21	557.66	5.33
2-392	AS568-392	22.94	0.21	582.68	5.33
2-393	AS568-393	23.94	0.21	608.08	5.33
2-394	AS568-394	24.94	0.21	633.48	5.33
2-395	AS568-395	25.94	0.21	658.88	5.33

The dash number crosses the size; the compound crosses only through the document it is made to. The O-ring part number cross-reference guide walks through both halves.

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Orders are handled under Conquest Seal's AS9100D quality management system, whose certificate scope includes distribution.

Send the dash number, the compound and the quantity

We stock every AS568 size. Any size is quoted in the compound your print names. A Conquest representative replies. Quotes answered within one business day. A person answers (714) 632-9830, Pacific business hours.

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Last updated October 24, 2026