The O-Ring, cataloged under National Stock Number 5331-01-278-6711, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Sun Hydraulics Corporation. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Sun Hydraulics Ltd (CAGE U4474); Sun Hydraulics Corporation (CAGE 54035) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-278-6711 |
| Primary Part Number | 990-002-006 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Sun Hydraulics Corporation |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 990-002-006 | Sun Hydraulics Ltd (GBR) |
| 990-002-006 PRIMARY | Sun Hydraulics Corporation (USA) |
NSN 5331-01-278-6711 is a O-Ring, manufactured by Sun Hydraulics Corporation, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-278-6711 has 2 manufacturer part numbers on file: 990-002-006 (Sun Hydraulics Ltd), 990-002-006 (Sun Hydraulics Corporation).
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.