The O-Ring, cataloged under National Stock Number 5331-01-526-8981, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Pump Engineering, Inc.. 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 | 5331-01-526-8981 |
| Primary Part Number | 51002500 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Pump Engineering, Inc. |
| 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 |
|---|---|
| 51002500 PRIMARY | Pump Engineering, Inc. (USA) |
NSN 5331-01-526-8981 is a O-Ring, manufactured by Pump Engineering, Inc., classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-526-8981 has 1 manufacturer part number on file: 51002500 (Pump Engineering, Inc.).
Key specifications for 51002500: End Item Identification: TACTICAL WATER PURIFICATION SYSTEM (TWPS) NSN 4610-01-488-9656. 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.