The Valve,safety Relief, cataloged under National Stock Number 4820-01-351-2935, 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 7 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-351-2935 |
| Primary Part Number | 120-01210-001 |
| 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 | ANGLE |
| Adjustable Pressure Range | +30.0 TO 70.0 POUNDS PER SQUARE INCH LBS |
| Disk Loading Method | SPRING |
| Material | STEEL COMP 316 OVERALL |
| Opening Pressure Setting | 30.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| 120-01210-001 PRIMARY | Aqua-Chem, Inc. Dba Aqua-Chem Inc (USA) |
| Reference | Meaning |
|---|---|
| 120-01210-1 | 5/9 Secondary reference Aqua-Chem, Inc. |
| 120-01210-001 | 3/9 Design control — primary reference Aqua-Chem, Inc. |
| 13229E0359-1 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-01-351-2935 is a Valve,safety Relief, manufactured by Aqua-Chem, Inc. Dba Aqua-Chem Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-351-2935 has 1 manufacturer part number on file: 120-01210-001 (Aqua-Chem, Inc. Dba Aqua-Chem Inc).
Key specifications for 120-01210-001: Flow Control Device: DISK; Style Designator: ANGLE; Adjustable Pressure Range: +30.0 TO 70.0 POUNDS PER SQUARE INCH LBS; Disk Loading Method: SPRING. 7 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.