The O-Ring, cataloged under National Stock Number 5331-01-491-6131, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Atlas Copco. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Atlas Copco (CAGE 0CA08); Montabert (CAGE F5267) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-491-6131 |
| Primary Part Number | 2686261344 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Atlas Copco |
| 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 |
|---|---|
| 2686261344 PRIMARY | Atlas Copco (USA) |
| 86261344 | Montabert (FRA) |
| Reference | Meaning |
|---|---|
| 86261344 | 3/9 Design control — primary reference Atlas Copco |
| 86261344 | 5/1 Secondary reference Tramac Corporation |
NSN 5331-01-491-6131 is a O-Ring, manufactured by Atlas Copco, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-491-6131 has 2 manufacturer part numbers on file: 2686261344 (Atlas Copco), 86261344 (Montabert).
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.