The O-Ring, cataloged under National Stock Number 5331-01-571-7999, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-571-7999 |
| Primary Part Number | 20974222 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
| Status | ACTIVE |
| Color | BLACK |
| 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 |
|---|---|
| 20974222 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| Reference | Meaning |
|---|---|
| 56AX608 | 5/9 Secondary reference Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
| 20974222 | 3/2 Design control — primary reference U.S. Government activity |
| 56AX608 | 5/9 Secondary reference U.S. Government activity |
NSN 5331-01-571-7999 is a O-Ring, manufactured by Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-571-7999 has 1 manufacturer part number on file: 20974222 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales).
Key specifications for 20974222: Color: BLACK; Special Features: WORKING PRESSURE 1500 PSI; Part Name Assigned by Controlling Agency: ORING; End Item Identification: MACK TRUCK; MRAP BUFFALO MK2A2. 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.