Mil-spec O-ring family, nitrile, hydrocarbon fuel
MS29513 O-rings: nitrile for hydrocarbon fuel to AMS-P-5315 and AS29513
MS29513-XXX specifies a nitrile (NBR) O-ring for hydrocarbon fuel in the standard AS568 size the dash names, and MS29512-YY the same material in the straight-thread tube-fitting boss sizes; the governing MIL-P-5315 was cancelled on 2002-02-28 in favor of SAE-AMS-P-5315 (current at revision C of 2022-08-05), and the drawings are current as SAE-AS29513C and SAE-AS29512C, both dated 2021-11-09.
- Polymer
- Nitrile (NBR)hydrocarbon fuel
- Durometer
- 70as manufacturers supply it
- Current drawings
- AS29513C, AS29512C2021-11-09
- QPL
- None on recordMIL document cancelled
Specification: documents, status, material
| Item | Value | Source |
|---|---|---|
| MIL material document | MIL-P-5315, packing, preformed, hydrocarbon fuel resistant: Canceled 2002-02-28 (inactivated 1997-12-31), superseded by SAE-AMS-P-5315 | DLA ASSIST ident 5334, read 2026-09-06 |
| SAE material document | SAE-AMS-P-5315: current AMSP5315C, 2022-08-05 | SAE Mobilus, read 2026-09-06 |
| Standard-size drawing | MS29513 to SAE-AS29513, packing, preformed, hydrocarbon fuel resistant, O-ring: current AS29513C, 2021-11-09 | SAE Mobilus, read 2026-09-06 |
| Boss-size drawing | MS29512 to SAE-AS29512, packing, preformed, hydrocarbon fuel resistant, tube fitting, O-ring: current AS29512C, 2021-11-09 | SAE Mobilus, read 2026-09-06 |
| Base polymer | Nitrile (NBR) | document titles |
| Durometer | Manufacturers supply this family at 70 (Parker® ORD 5700 (2021) Table 8-4 lists its compound in the 65 to 75 band); confirm the durometer against your print | Parker ORD 5700 (2021) |
| Slash sheets / classes | None; two drawings on one material document | DLA ASSIST and SAE Mobilus, read 2026-09-06 |
| Boss variant | MS29512-YY / AS29512-YY, mapping to AS568-9YY | manufacturers' cross-references |
| QPL | None on record for the cancelled MIL document; AMS-P-5315 not stated | DLA ASSIST and SAE Mobilus, read 2026-09-06 |
| Service | Hydrocarbon fuel (the document titles); Parker ORD 5700 (2021) Table 8-3 reads jet fuels beside the MIL-P-5315 line | document titles; Parker ORD 5700 (2021) |
| Tolerance note | One manufacturer's 2024 cross-reference flags parts in this family above 0.500 in inside diameter as tight tolerance, tighter than plain AS568; the drawing governs | manufacturers' cross-references |
| Compounds manufacturers pair with this document | Parker ORD 5700 (2021) Table 8-3 and Table 8-4 pair N0602-70 with MIL-P-5315 and AMS-P-5315, noting the MS29512 and MS29513 series | Parker ORD 5700 (2021) |
Status strings are quoted as DLA ASSIST and SAE Mobilus print them (Canceled is ASSIST's spelling; Inactive means inactive for new design; Withdrawn is SAE's word). Conquest Seal is a distributor and is not itself listed on any qualified products list.
Designator to AS568 size
MS29513-XXX and AS29513-XXX are the AS568-XXX size; MS29512-YY and AS29512-YY are the boss sizes, AS568-9YY. Both mappings come from the manufacturers' cross-references. The drawing's tolerances can be tighter than AS568 on the larger inside diameters, so the drawing governs.
| MS29513 | AS29513 | AS568 dash | ID in | W in | ID mm | W mm |
|---|---|---|---|---|---|---|
| MS29513-006 | AS29513-006 | AS568-006 | 0.114 | 0.070 | 2.90 | 1.78 |
| MS29513-010 | AS29513-010 | AS568-010 | 0.239 | 0.070 | 6.07 | 1.78 |
| MS29513-012 | AS29513-012 | AS568-012 | 0.364 | 0.070 | 9.25 | 1.78 |
| MS29513-112 | AS29513-112 | AS568-112 | 0.487 | 0.103 | 12.37 | 2.62 |
| MS29513-114 | AS29513-114 | AS568-114 | 0.612 | 0.103 | 15.54 | 2.62 |
| MS29513-116 | AS29513-116 | AS568-116 | 0.737 | 0.103 | 18.72 | 2.62 |
| MS29513-210 | AS29513-210 | AS568-210 | 0.734 | 0.139 | 18.64 | 3.53 |
| MS29513-214 | AS29513-214 | AS568-214 | 0.984 | 0.139 | 24.99 | 3.53 |
| MS29513-222 | AS29513-222 | AS568-222 | 1.484 | 0.139 | 37.69 | 3.53 |
| MS29513-325 | AS29513-325 | AS568-325 | 1.475 | 0.210 | 37.47 | 5.33 |
Millimeter values are converted from the inch table. The dash is a size lookup and never a material; the same dash on another family on the mil-spec hub is the same size in a different document. Full chart: AS568 size chart.
Where the documents stand
MIL-P-5315 was the hydrocarbon fuel resistant packing document behind both MS drawings. DLA ASSIST records it inactivated on 1997-12-31 and cancelled on 2002-02-28, superseded by SAE-AMS-P-5315, which is current at revision C of 2022-08-05. The drawings moved to SAE as AS29513 (standard sizes) and AS29512 (tube-fitting boss sizes), both current at revision C dated 2021-11-09, and both titles keep the MS number's wording, packing, preformed, hydrocarbon fuel resistant.
A print that reads MS29513 or MS29512 is therefore quoted against AS29513 or AS29512 for the drawing and AMS-P-5315 for the material. The callouts did not change.
The base polymer
The polymer behind this family is nitrile (NBR). The Parker O-Ring Handbook ORD 5700 family range on file for Buna-N (NBR) is -34 C to 100 C; that is the polymer family's range, not this document's requirement, and the compound sheet for the qualified grade governs. Parker notes that specification temperature limits do not necessarily represent operating temperature limits.
Material page: Nitrile (NBR) O-rings. Temperature ranges by family: O-ring temperature ranges.
How we quote this family
Send the designator as printed, MS29513-XXX or MS29512-YY (or the AS29513 / AS29512 form), with the dash, the quantity and the certification the order needs. We quote it supplied against AMS-P-5315 and the AS drawing, in the fuel-resistant nitrile compound the document calls for, with a certificate of conformance and lot traceability. If the print names a compound number, include it and we quote that compound.
Related pages
Other families: MS28775, M83461/1, M83248/1 and M83248/2, M83485/1, M25988/1, /2, /3 and /4, NAS1611 and NAS1612, AS3582, AS9386 and AS9385, AS3209 and AS3208.
Frequently asked
What is an MS29513 O-ring and what durometer is it?
A nitrile (NBR) O-ring for hydrocarbon fuel, made to MIL-P-5315 and now to SAE-AMS-P-5315 with SAE-AS29513 as the drawing. Manufacturers supply it at 70; Parker ORD 5700 (2021) lists its N0602-70 against the document in the 65 to 75 band. Confirm the durometer against your print.
What is the difference between MS29513 and MS29512?
Size series only. MS29513 (now AS29513) carries the standard AS568 sizes with a three-digit dash, and MS29512 (now AS29512) carries the straight-thread tube-fitting boss sizes with a two-digit dash that maps to AS568-9YY. Both are the same fuel-resistant nitrile under AMS-P-5315.
Is MIL-P-5315 still active?
No. DLA ASSIST lists it cancelled on 2002-02-28 and superseded by SAE-AMS-P-5315, current at revision C of 2022. The drawings are current as AS29513C and AS29512C. The MS part numbers stay valid on drawings.
What compound is an MS29513 O-ring?
A nitrile compound qualified to AMS-P-5315 (formerly MIL-P-5315), the hydrocarbon fuel resistant packing document. Parker ORD 5700 (2021) pairs N0602-70 with it and notes the MS29512 and MS29513 series. Note that this is not the MS28775 hydraulic compound; the two families are different nitriles for different fluids.
Related guides
Sources
DLA ASSIST document details, ident 5334 (MIL-P-5315), read 2026-09-06; SAE Mobilus: AMSP5315C (2022-08-05), AS29513C and AS29512C (2021-11-09), read 2026-09-06; Parker O-Ring Handbook ORD 5700 (2021), Tables 8-3 and 8-4, for the compound pairing; Manufacturers' aerospace cross-references (2024) for the standard-versus-boss split and the tolerance note; AS568 dimensions from this site's size chart. Facts are stated in our own words and our own arrangement; no standard's text or table and no manufacturer's cross-reference table is reproduced. Compound pairings are the named manufacturer's published statements, not qualified products list entries.
Parker is a trademark of Parker Hannifin Corporation. No affiliation or endorsement is implied.
Need MS29513 and MS29512 with certification?
Send the designator as the print reads it, the dash, the quantity and the paperwork the order needs. A Conquest representative replies with the part quoted against the document.
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