The O-Ring, cataloged under National Stock Number 5331-01-646-1278, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-646-1278 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Status | ACTIVE |
| 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 |
|---|---|
| 042042-000001 ITEM 12 | 3/9 Design control — primary reference Amiad U.s.a., Inc. |
| 770102-000188 | 5/9 Secondary reference Amiad U.s.a., Inc. |
NSN 5331-01-646-1278 is a O-Ring, classified under FSC 5331, O-ring. Status: active.
Key specifications for 5331-01-646-1278: Special Features: P2-471 NBR O-RING SEAL; Part Name Assigned by Controlling Agency: O-RING SEAL; End Item Identification: EBS-10K I/L FILTER. 0 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.