The O-Ring, cataloged under National Stock Number 5331-01-371-0456, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-371-0456 |
| Primary Part Number | 6381683 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.275 INCHES NOMINAL IN |
| Material Document and Classification | ASTM D2000 -2BC 407 A14B14E034F17 ASSN STD SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 22.773 INCHES MINIMUM AND 22.853 INCHES MAXIMUM IN |
| Material | RUBBER CHLOROPRENE CLASS CR |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6381683 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5331-01-371-0456 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-371-0456 has 1 manufacturer part number on file: 6381683 (Naval Sea Systems Command).
Key specifications for 6381683: Cross-Sectional Height: 0.275 INCHES NOMINAL IN; Material Document and Classification: ASTM D2000 -2BC 407 A14B14E034F17 ASSN STD SINGLE MATERIAL RESPONSE; Center Hole Diameter: 22.773 INCHES MINIMUM AND 22.853 INCHES MAXIMUM IN; Material: RUBBER CHLOROPRENE CLASS CR. 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.