The O-Ring, cataloged under National Stock Number 5331-01-416-9425, 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 4 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 5331-01-416-9425 |
| Primary Part Number | 336-190-224 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Interspiro Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 1.27 MILLIMETERS MINIMUM AND 1.43 MILLIMETERS MAXIMUM MM |
| Criticality Code Justification | FEAT |
| Center Hole Diameter | 65.1 MILLIMETERS MINIMUM AND 65.9 MILLIMETERS MAXIMUM MM |
| Material | RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR |
| 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 |
|---|---|
| 336-190-224 PRIMARY | Interspiro Inc (USA) |
| 336190224 | Interspiro Gmbh (DEU) |
| 336-190-224 | Interspiro Ltd (GBR) |
| DE995 | Jfd Ltd (GBR) |
| Reference | Meaning |
|---|---|
| 470-0125 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5331-01-416-9425 is a O-Ring, manufactured by Interspiro Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-416-9425 has 4 manufacturer part numbers on file: 336-190-224 (Interspiro Inc), 336190224 (Interspiro Gmbh), 336-190-224 (Interspiro Ltd), DE995 (Jfd Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5331-01-424-1865. Verify interchangeability with system specifications before substitution.
Key specifications for 336-190-224: Cross-Sectional Height: 1.27 MILLIMETERS MINIMUM AND 1.43 MILLIMETERS MAXIMUM MM; Criticality Code Justification: FEAT; Special Features: UNDERWATER LIFE SUPPORT IAW NAVSEA INSTRUCTION 10560.2B; Center Hole Diameter: 65.1 MILLIMETERS MINIMUM AND 65.9 MILLIMETERS MAXIMUM MM. 4 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.