The O-Ring, cataloged under National Stock Number 5331-01-479-2039, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Haltec Corp. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-479-2039 |
| Primary Part Number | FP-136 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Haltec Corp |
| Status | ACTIVE |
| Cross-Sectional Height | 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN |
| Center Hole Diameter | 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN |
| 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 |
NSN 5331-01-479-2039 is a O-Ring, manufactured by Haltec Corp, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-479-2039 has 2 manufacturer part numbers on file: FP-136 (Haltec Corp), 7HB433 (Oshkosh Defense Llc).
Key specifications for FP-136: Cross-Sectional Height: 0.065 INCHES MINIMUM AND 0.075 INCHES MAXIMUM IN; Center Hole Diameter: 0.359 INCHES MINIMUM AND 0.369 INCHES MAXIMUM IN; End Item Identification: 2320-01-465-2174; MRAP - COUGAR ISS 1.0; MRAP - COUGAR ISS 1.5; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.