The O-Ring, cataloged under National Stock Number 5331-01-424-5267, 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 3 specifications, cited from the U.S. Government catalog. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-424-5267 |
| Primary Part Number | 801-6408779 FIND 53 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Cross-Sectional Height | 0.380 INCHES NOMINAL IN |
| Center Hole Diameter | 0.190 INCHES MINIMUM AND 0.210 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 |
|---|---|
| DF330636 FN 53 | Huntington Ingalls Inc Div Newport News Shipbuilding (USA) |
| 801-6408779 FIND 53 PRIMARY | Naval Sea Systems Command (USA) |
| 211055120 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 211094345 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
NSN 5331-01-424-5267 is a O-Ring, manufactured by Naval Sea Systems Command, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-424-5267 has 3 manufacturer part numbers on file: DF330636 FN 53 (Huntington Ingalls Inc Div Newport News Shipbuilding), 801-6408779 FIND 53 (Naval Sea Systems Command), 211055120 (Naval Sea Systems Command).
Key specifications for 801-6408779 FIND 53: Cross-Sectional Height: 0.380 INCHES NOMINAL IN; Center Hole Diameter: 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM. 3 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.