The O-Ring, cataloged under National Stock Number 5331-01-389-0144, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-389-0144 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Temp Rating | 70.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | NAS1611 FED SPEC SINGLE MATERIAL RESPONSE |
| Specification/standard Data | 80205-NAS1601 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Center Hole Diameter | 8.437 INCHES MINIMUM AND 8.537 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 |
|---|---|
| 918352 | 5/9 Secondary reference L3 Technologies, Inc. Div L3 Keo |
| NAS1611-173 | 3/2 Design control — primary reference U.S. Government activity |
| NAS1601-173 | 5/9 Secondary reference U.S. Government activity |
| NAS1613 | 3/1 Design control — primary reference U.S. Government activity |
NSN 5331-01-389-0144 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-389-0144: Temp Rating: 70.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.100 INCHES MINIMUM AND 0.106 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A MINIMUM AND 85.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: NAS1611 FED SPEC SINGLE MATERIAL RESPONSE. 7 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.