The O-Ring, cataloged under National Stock Number 5331-01-644-7798, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Hydraspecma Ab. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | O-Ring |
| FSC / FSG | 5331 — O-ring (FSG 53) |
| Manufacturers | Hydraspecma Ab (CAGE AL48N); Independent Rough Terrain Center Llc (CAGE 1NWY2) |
| Parameter | Value |
|---|---|
| NSN | 5331-01-644-7798 |
| Primary Part Number | 112274 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Hydraspecma Ab |
| 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 |
|---|---|
| 112274 PRIMARY | Hydraspecma Ab (SWE) |
| CC-0010914 | Independent Rough Terrain Center Llc (USA) |
| Reference | Meaning |
|---|---|
| CC-0010916 | D/9 Drawing number reference only Independent Rough Terrain Center Llc |
| 112274 | 3/9 Design control — primary reference Specma Dunlop Hydraulic Ab |
NSN 5331-01-644-7798 is a O-Ring, manufactured by Hydraspecma Ab, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-644-7798 has 2 manufacturer part numbers on file: 112274 (Hydraspecma Ab), CC-0010914 (Independent Rough Terrain Center Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-653-1084. Verify interchangeability with system specifications before substitution.
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.