The O-Ring, cataloged under National Stock Number 5331-01-232-1479, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-01-232-1479 |
| Primary Part Number | 6305-53 PIECE 53 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Huntington Ingalls Inc Div Newport News Shipbuilding |
| Status | ACTIVE |
| Temp Rating | -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF |
| Hardness Rating | 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM |
| Material Document and Classification | MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE |
| Elongation Percentage | 160 MAXIMUM |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 6305-53 PIECE 53 PRIMARY | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| 6305-53 PC53 MI | C/1 Advisory reference — outside the item-of-supply concept Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 5331-01-232-1479 is a O-Ring, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-232-1479 has 1 manufacturer part number on file: 6305-53 PIECE 53 (Huntington Ingalls Inc Div Newport News Shipbuilding).
Key specifications for 6305-53 PIECE 53: Temp Rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT DEGF; Hardness Rating: 70.0 SHORE DUROMETER A MINIMUM AND 80.0 SHORE DUROMETER A MAXIMUM; Material Document and Classification: MIL-P-25732 MIL SPEC SINGLE MATERIAL RESPONSE; Elongation Percentage: 160 MAXIMUM. 5 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.