The O-Ring, cataloged under National Stock Number 5331-01-406-5506, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Senior Supply Co Inc. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Montreal Bronze Ltd Dba Les Fonderies De Bronze Montr?al (CAGE 38881); Senior Supply Co Inc (CAGE 6M125) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-406-5506 |
| Primary Part Number | P-1290 ITEM 6 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Senior Supply Co Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| P-1114 | Montreal Bronze Ltd Dba Les Fonderies De Bronze Montr?al (CAN) |
| P-1114 | Senior Supply Co Inc (USA) |
| P-1290 ITEM 6 PRIMARY | Senior Supply Co Inc (USA) |
| P-1290 ITEM 6 | Montreal Bronze Ltd Dba Les Fonderies De Bronze Montr?al (CAN) |
| Reference | Meaning |
|---|---|
| 5331PL1284836 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5331-01-406-5506 is a O-Ring, manufactured by Senior Supply Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-406-5506 has 4 manufacturer part numbers on file: P-1114 (Montreal Bronze Ltd Dba Les Fonderies De Bronze Montr?al), P-1114 (Senior Supply Co Inc), P-1290 ITEM 6 (Senior Supply Co Inc), P-1290 ITEM 6 (Montreal Bronze Ltd Dba Les Fonderies De Bronze Montr?al).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-465-7693. Verify interchangeability with system specifications before substitution.
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.