The O-Ring, cataloged under National Stock Number 5331-01-429-9972, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-429-9972 |
| Primary Part Number | 211054473 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Temp Rating | -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF |
| Cross-Sectional Height | 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Hardness Rating | 75.0 SHORE DUROMETER A NOMINAL |
| Material Document and Classification | MIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE |
| Center Hole Diameter | 22.536 INCHES MINIMUM AND 22.776 INCHES MAXIMUM IN |
| Material | RUBBER FLUOROCARBON CLASS FPM |
| 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 |
|---|---|
| 211054473 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 754-6407529 ITEM 1 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5331-01-429-9972 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-429-9972 has 1 manufacturer part number on file: 211054473 (Naval Sea Systems Command).
Key specifications for 211054473: Temp Rating: -40.0 FAHRENHEIT AND 400.0 FAHRENHEIT DEGF; Cross-Sectional Height: 0.269 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Hardness Rating: 75.0 SHORE DUROMETER A NOMINAL; Material Document and Classification: MIL-R-83485 TYPE 1 MIL SPEC SINGLE MATERIAL RESPONSE. 6 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.