The O-Ring, cataloged under National Stock Number 5331-01-399-2160, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Wiggins Lift Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-399-2160 |
| Primary Part Number | 639043 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Wiggins Lift Co Inc |
| Status | ACTIVE |
| Cross-Sectional Height | 0.070 INCHES NOMINAL IN |
| Center Hole Diameter | 0.860 INCHES NOMINAL IN |
| Material | RUBBER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5331-01-399-2160 is a O-Ring, manufactured by Wiggins Lift Co Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-399-2160 has 2 manufacturer part numbers on file: P-639043A (Wiggins Lift Co Inc), 639043 (Wiggins Lift Co Inc).
1 possible match (shared part number, not a government interchangeability claim): 6520-01-518-1335. Verify interchangeability with system specifications before substitution.
Key specifications for 639043: Cross-Sectional Height: 0.070 INCHES NOMINAL IN; Center Hole Diameter: 0.860 INCHES NOMINAL IN; Material: RUBBER. 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.