The O-Ring, cataloged under National Stock Number 5331-01-075-5979, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Dressta North America Ltd. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Dressta North America Ltd (CAGE 45RP7) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-075-5979 |
| Primary Part Number | 22278R1 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Dressta North America Ltd |
| 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 |
|---|---|
| 22278R1 PRIMARY | Dressta North America Ltd (USA) |
| Reference | Meaning |
|---|---|
| 22278R1 | 5/9 Secondary reference Komatsu America Corporation |
| D-73931 | C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh |
| D73931 | 5/9 Secondary reference Komatsu America Corporation |
| 73931 | 5/9 Secondary reference Komatsu America Corporation |
NSN 5331-01-075-5979 is a O-Ring, manufactured by Dressta North America Ltd, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-075-5979 has 1 manufacturer part number on file: 22278R1 (Dressta North America Ltd).
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.