The O-Ring, cataloged under National Stock Number 5331-00-056-8277, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Perkins Engines Inc. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5331-00-056-8277 |
| Primary Part Number | 0640116 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Perkins Engines Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.062 INCHES NOMINAL IN |
| 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 |
|---|---|
| 0640116 PRIMARY | Perkins Engines Inc (USA) |
| Reference | Meaning |
|---|---|
| 0640116 | 5/9 Secondary reference Westerbeke Corporation |
NSN 5331-00-056-8277 is a O-Ring, manufactured by Perkins Engines Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-056-8277 has 1 manufacturer part number on file: 0640116 (Perkins Engines Inc).
Key specifications for 0640116: Cross-Sectional Height: 0.062 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 2 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.