The O-Ring, cataloged under National Stock Number 5331-00-252-6046, 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 6 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 11 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5331-00-252-6046 |
| Primary Part Number | MS29513-443 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Outside Diameter | 8.025 INCHES NOMINAL IN |
| Elongation Percentage | 200 MAXIMUM |
| Center Hole Diameter | 7.445 INCHES MINIMUM AND 7.505 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 |
|---|---|
| MS29513-443 PRIMARY | Sae International Dba Sae International (USA) |
| 660-P-31-443 | West American Rubber Co Extrude Products Div (USA) |
| 7866-443 | Parker Hannifin Corporation Div O-Ring Division (USA) |
| PRP568-443-60 | Parco, Llc (USA) |
| 10V60-141-443 | Houghton International Inc. (USA) |
| 457-60-443 | Parco, Llc (USA) |
| C-69-443 | Federal-Mogul Corp Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| 2-443 N602-70 | 5/9 Secondary reference Dolly Mfg Corp |
| ARP568-443 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS29513-443 | 5/9 Secondary reference U.S. Government activity |
| SR-822A-60-443 | 5/2 Secondary reference U.S. Government activity |
| MILP5315 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS29513 | 3/1 Design control — primary reference Sae International Dba Sae International |
| 23750-96 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| MS29513-443 | 3/9 Design control — primary reference U.S. Government activity |
| 1793-443 | 5/2 Secondary reference U.S. Government activity |
| 725-70-443 | 5/2 Secondary reference U.S. Government activity |
| RT253-65-443 | 5/9 Secondary reference Rubbercraft Corporation of California, Ltd. Dba Rubbercraft Corp |
NSN 5331-00-252-6046 is a O-Ring, manufactured by Sae International Dba Sae International, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-252-6046 has 7 manufacturer part numbers on file: MS29513-443 (Sae International Dba Sae International), 660-P-31-443 (West American Rubber Co Extrude Products Div), 7866-443 (Parker Hannifin Corporation Div O-Ring Division), PRP568-443-60 (Parco, Llc), 10V60-141-443 (Houghton International Inc.) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 3120-00-888-4095. Verify interchangeability with system specifications before substitution.
Key specifications for MS29513-443: Temp Rating: -65.0 FAHRENHEIT AND 200.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Outside Diameter: 8.025 INCHES NOMINAL IN; Elongation Percentage: 200 MAXIMUM. 6 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.