The O-Ring, cataloged under National Stock Number 5331-01-631-0421, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Trans Air Manufacturing Corporation Div Trans/air Mfg.. 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 | 5331-01-631-0421 |
| Primary Part Number | 518025 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Trans Air Manufacturing Corporation Div Trans/air Mfg. |
| 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 |
|---|---|
| 518025 PRIMARY | Trans Air Manufacturing Corporation Div Trans/air Mfg. (USA) |
NSN 5331-01-631-0421 is a O-Ring, manufactured by Trans Air Manufacturing Corporation Div Trans/air Mfg., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-631-0421 has 1 manufacturer part number on file: 518025 (Trans Air Manufacturing Corporation Div Trans/air Mfg.).
Key specifications for 518025: Part Name Assigned by Controlling Agency: O-RING NO. 10; End Item Identification: MRAP - MAXXPRO OGPK/RWS. 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.