The O-Ring, cataloged under National Stock Number 5331-01-526-3501, is classified within Federal Supply Class 5331 (O-ring) of the Hardware and Abrasives group. The manufacturer of record is Aqua-Chem, Inc. Dba Aqua-Chem Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5331-01-526-3501 |
| Primary Part Number | 843-08064-007 |
| Item Name | O-Ring |
| FSC / FSG | 5331 / 53 — O-ring |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem 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 |
|---|---|
| 843-08064-007 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 10540573 | 5/9 Secondary reference Memtec America Corp Filterite Sales Div |
NSN 5331-01-526-3501 is a O-Ring, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 5331, O-ring. Status: active.
NSN 5331-01-526-3501 has 1 manufacturer part number on file: 843-08064-007 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
Key specifications for 843-08064-007: 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.