The Valve,safety Relief, cataloged under National Stock Number 4820-01-463-6925, 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. Government technical data includes 6 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-463-6925 |
| Primary Part Number | 940-08785-000 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Aqua-Chem, Inc. Dba Aqua-Chem Inc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Style Designator | STRAIGHT THRU FLANGED ENDS |
| Disk Loading Method | SPRING |
| Mounting Facility | BRACKET(S) |
| Material | NICKEL ALLOY OVERALL |
| Valve Operation Method | AUTOMATIC |
| 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 |
|---|---|
| 940-08785-000 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 218004629 | 5/2 Secondary reference U.S. Government activity |
| 940-8785 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 940-D-8785 | 5/9 Secondary reference Aqua-Chem, Inc. |
NSN 4820-01-463-6925 is a Valve,safety Relief, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-463-6925 has 1 manufacturer part number on file: 940-08785-000 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
Key specifications for 940-08785-000: Flow Control Device: DISK; Style Designator: STRAIGHT THRU FLANGED ENDS; Disk Loading Method: SPRING; Mounting Facility: BRACKET(S). 6 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.