The Valve,check, cataloged under National Stock Number 4820-01-526-2322, 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 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Valve,check |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Aqua-Chem, Inc. Dba Aqua-Chem Inc (CAGE 0EXU3); Cooper Cameron Corp Cooper Cameron Valves Div (CAGE 15645) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-526-2322 |
| Primary Part Number | 940-09021-000 |
| Item Name | Valve,check |
| 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 |
|---|---|
| 940-09021-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| 1.5 EHV 36 36 U NS 150 VC | Cooper Cameron Corp Cooper Cameron Valves Div (USA) |
| 1.5 5103-316-V | Cooper Cameron Corp Cooper Cameron Valves Div (USA) |
| Reference | Meaning |
|---|---|
| 940-A-9021 | D/9 Drawing number reference only Aqua-Chem, Inc. Dba Aqua-Chem Inc |
NSN 4820-01-526-2322 is a Valve,check, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-526-2322 has 3 manufacturer part numbers on file: 940-09021-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc), 1.5 EHV 36 36 U NS 150 VC (Cooper Cameron Corp Cooper Cameron Valves Div), 1.5 5103-316-V (Cooper Cameron Corp Cooper Cameron Valves Div).
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.