The O-Ring, cataloged under National Stock Number 5331-01-734-9577, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-734-9577 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Cross-Sectional Height | 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN |
| Outside Diameter | 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN |
| Hardness Rating | 65.0 SHORE DUROMETER A NOMINAL |
| Specification/standard Data | 81349-MIL-DTL-22050 GOVERNMENT SPECIFICATION |
| Center Hole Diameter | 0.915 INCHES MINIMUM AND 0.933 INCHES MAXIMUM IN |
| Material | RUBBER ETHYLENE-PROPYLENE CLASS EPM |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| R6491202-F149 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| LOA036450-F149 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| M22050-1-912 | 2/2 Government specification standardization U.S. Government activity |
| MIL-DTL-22050 | 4/1 Identification reference U.S. Government activity |
| 211051105 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 515-8843163-F149 | C/1 Advisory reference — outside the item-of-supply concept Naval Sea Systems Command |
NSN 5331-01-734-9577 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-734-9577: Cross-Sectional Height: 0.112 INCHES MINIMUM AND 0.120 INCHES MAXIMUM IN; Outside Diameter: 1.139 INCHES MINIMUM AND 1.173 INCHES MAXIMUM IN; Hardness Rating: 65.0 SHORE DUROMETER A NOMINAL; Specification/standard Data: 81349-MIL-DTL-22050 GOVERNMENT SPECIFICATION. 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.