The O-Ring, cataloged under National Stock Number 5331-01-642-0580, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Cummins Power Generation Inc.. Government technical data includes 1 specification, 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 | 5331-01-642-0580 |
| Primary Part Number | 509-0401 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Cummins Power Generation Inc. |
| Status | ACTIVE |
| Material | RUBBER SYNTHETIC |
| 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 |
|---|---|
| 509-0401 PRIMARY | Cummins Power Generation Inc. (USA) |
NSN 5331-01-642-0580 is a O-Ring, manufactured by Cummins Power Generation Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-642-0580 has 1 manufacturer part number on file: 509-0401 (Cummins Power Generation Inc.).
Key specifications for 509-0401: Part Name Assigned by Controlling Agency: SEAL,FUEL PUMP O-RING; End Item Identification: FUEL TRANSFER PUMP,MARINE GENERATOR SET; Material: RUBBER SYNTHETIC. 1 specification is 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.