The O-Ring, cataloged under National Stock Number 5331-01-497-3438, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-497-3438 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| UFR-23557 ITEM 5 | 3/9 Design control — primary reference Rolls-Royce Marine North America Inc |
| R6387 | 5/9 Secondary reference Ulstein Usa Inc |
| 23557 ITEM 5 | 5/9 Secondary reference Ulstein Usa Inc |
NSN 5331-01-497-3438 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-497-3438: End Item Identification: CONTROL VALVE ASSEMBLY (0JKF4)23557;PUMP UNIT PE 2-1/2 AND 3 INCH IN; Material: RUBBER SYNTHETIC. 1 specification is 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.