The O-Ring, cataloged under National Stock Number 5331-00-931-3011, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Amec Foster Wheeler North America Corp. Dba Foster Wheeler. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-00-931-3011 |
| Primary Part Number | NF42976-225 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Amec Foster Wheeler North America Corp. Dba Foster Wheeler |
| Status | ACTIVE |
| Cross-Sectional Height | 0.275 INCHES NOMINAL 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 |
| Part Number | Manufacturer |
|---|---|
| NF42976-225 PRIMARY | Amec Foster Wheeler North America Corp. Dba Foster Wheeler (USA) |
NSN 5331-00-931-3011 is a O-Ring, manufactured by Amec Foster Wheeler North America Corp. Dba Foster Wheeler, classified under FSC 5331, O-ring. Status: active.
NSN 5331-00-931-3011 has 1 manufacturer part number on file: NF42976-225 (Amec Foster Wheeler North America Corp. Dba Foster Wheeler).
Key specifications for NF42976-225: Cross-Sectional Height: 0.275 INCHES NOMINAL IN; Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR. 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.