The O-Ring, cataloged under National Stock Number 5331-00-251-9370, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 18 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-251-9370 |
| Primary Part Number | MS29513-338 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Cross-Sectional Height | 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Outside Diameter | 3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN |
| Center Hole Diameter | 3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| PRP568-338-457-60 | Parco, Llc (USA) |
| 7866-338 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| C-69-338 | Federal-Mogul Corp Government Sales Dept (USA) |
| 10V60-141-338 | Houghton International Inc. (USA) |
| 60-P-31-338 | West American Rubber Co Extrude Products Div (USA) |
| MS29513-338 PRIMARY | Sae International Dba Sae International (USA) |
| GS570EM338 | Northrop Grumman Systems Corporation (USA) |
| AS-338C69 PRIMARY | Federal-Mogul Corp Government Sales Dept (USA) |
| N0602 2-338 | Parker-Hannifin Corp Div O-Ring Division (USA) |
| PX1775-338 | Acushnet Rubber Company, Inc. Dba Precix (USA) |
| AS29513-338 | Dbr Industries, Inc. Dba Dbr Industries Inc (USA) |
| SR-822A-60-338 | Hutchinson Seal De Mexico Stillman Seal Division Div Stillman Seal,jpr,espa (MEX) |
| AS29513-338 | Alpre Inc (USA) |
| 457-60-338 | Parco, Llc (USA) |
| Reference | Meaning |
|---|---|
| AS29513-338 | 5/9 Secondary reference U.S. Government activity |
| 1793-338 | 5/2 Secondary reference U.S. Government activity |
| SR-822A-60-338 | 5/2 Secondary reference U.S. Government activity |
| 5331PL0804105 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| 725-70-338 | 5/2 Secondary reference U.S. Government activity |
| MS29513-338 | 5/9 Secondary reference U.S. Government activity |
| 2-338 N602-70 | 5/9 Secondary reference Dolly Mfg Corp |
| RT253-65-338 | 5/9 Secondary reference Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
| 10163868 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| SAE-AS29513 | 3/1 Design control — primary reference Sae International Dba Sae International |
| A-338SR8019-65 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 2-338 N602-70 | 5/9 Secondary reference Parker-Hannifin Corp Div O-Ring Division |
| AS29513-338 | 5/9 Secondary reference Sae International Dba Sae International |
| MS29513-338ES | 5/9 Secondary reference Eriks B.v. |
| MS29513-338 | 5/9 Secondary reference U.S. Government activity |
| 2-338 N602-70 | 5/9 Secondary reference Parker Hannifin Gmbh O-Ring Division |
| 85813PC39 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 338-C-69 | C/1 Advisory reference — outside the item-of-supply concept Federal-Mogul Corp Chassis Products Div |
NSN 5331-00-251-9370 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-251-9370 has 14 manufacturer part numbers on file: PRP568-338-457-60 (Parco, Llc), 7866-338 (Parker Hannifin Corporation Div O-Ring Division), C-69-338 (Federal-Mogul Corp Government Sales Dept), 10V60-141-338 (Houghton International Inc.), 60-P-31-338 (West American Rubber Co Extrude Products Div) and 9 more.
1 possible match (shared part number, not a government interchangeability claim): 5935-00-407-4704. Verify interchangeability with system specifications before substitution.
Key specifications for MS29513-338: Cross-Sectional Height: 0.205 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Outside Diameter: 3.486 INCHES MINIMUM AND 3.554 INCHES MAXIMUM IN; Center Hole Diameter: 3.085 INCHES MINIMUM AND 3.115 INCHES MAXIMUM IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 4 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.