The O-Ring, cataloged under National Stock Number 5331-01-566-4286, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hughes Motors, Inc.. 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 | 5331-01-566-4286 |
| Primary Part Number | 4379RD537290 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hughes Motors, Inc. |
| Status | ACTIVE |
| 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 |
|---|---|
| 4379RD537290 PRIMARY | Hughes Motors, Inc. (USA) |
NSN 5331-01-566-4286 is a O-Ring, manufactured by Hughes Motors, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-566-4286 has 1 manufacturer part number on file: 4379RD537290 (Hughes Motors, Inc.).
Key specifications for 4379RD537290: Special Features: USED IN REFRIGERANT PIPING PER T.M. 9-2320-327-24P; End Item Identification: MRAP - UNIQUE NSN - USED ON 2 MRAP VARIANTS; MRAP BUFFALO MK2A2. 0 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.