The O-Ring, cataloged under National Stock Number 5331-01-421-6382, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Interspiro Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-421-6382 |
| Primary Part Number | 336-190-222 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| Criticality Code Justification | FEAT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 336-190-222 PRIMARY | Interspiro Inc (USA) |
| 336190222 | Interspiro Gmbh (DEU) |
| 336-190-222 | Interspiro Ltd (GBR) |
| DE1077 | Jfd Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 336190222 | 5/9 Secondary reference Rch (realisations Et Conseils Hyperbares) |
| 470-0104 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-421-6382 is a O-Ring, manufactured by Interspiro Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-421-6382 has 4 manufacturer part numbers on file: 336-190-222 (Interspiro Inc), 336190222 (Interspiro Gmbh), 336-190-222 (Interspiro Ltd), DE1077 (Jfd Ltd).
Key specifications for 336-190-222: Criticality Code Justification: FEAT; Special Features: UNDERWATER LIFE SUPPORT IAW NAVSEA INSTRUCTION 10560.2B; End Item Identification: MK20MOD0 UBA DIVING SYS. 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.