The Valve,safety Relief, cataloged under National Stock Number 4820-00-481-9588, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Cosmodyne, Llc Dba Cosmodyne Llc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-481-9588 |
| Primary Part Number | 3200774-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Cosmodyne, Llc Dba Cosmodyne Llc |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 130.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND FIRST END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NPT FIRST END |
| Opening Pressure Setting | 125.0 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 |
|---|---|
| 3200774-1CP | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
| 3200774-1 PRIMARY | Cosmodyne, Llc Dba Cosmodyne Llc (USA) |
NSN 4820-00-481-9588 is a Valve,safety Relief, manufactured by Cosmodyne, Llc Dba Cosmodyne Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-481-9588 has 2 manufacturer part numbers on file: 3200774-1CP (Cosmodyne, Llc Dba Cosmodyne Llc), 3200774-1 (Cosmodyne, Llc Dba Cosmodyne Llc).
Key specifications for 3200774-1: Flow Control Device: DISK; Connection Style: PLAIN,OPTIONAL END(PIPE) FIRST END; Connection Type: THREADED INTERNAL PIPE FIRST END; Style Designator: STRAIGHT THRU. 12 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.