The Valve,safety Relief, cataloged under National Stock Number 4820-01-526-1871, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-526-1871 |
| Primary Part Number | 940-09069-000 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| 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 |
|---|---|
| 940-09069-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 799-D-13039 | D/9 Drawing number reference only Aqua-Chem, Inc. Dba Aqua-Chem Inc |
NSN 4820-01-526-1871 is a Valve,safety Relief, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-526-1871 has 1 manufacturer part number on file: 940-09069-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-526-1940. Verify interchangeability with system specifications before substitution.
Key specifications for 940-09069-000: End Item Identification: TACTICAL WATER PURIFICATION SYS; TWPS 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.