The Valve,safety Relief, cataloged under National Stock Number 4820-01-622-9675, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Storm Manufacturing Group, Inc. Dba Buckner by Storm. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-622-9675 |
| Primary Part Number | 112CSS-4-040 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Storm Manufacturing Group, Inc. Dba Buckner by Storm |
| Status | ACTIVE |
| Flow Control Device | BALL |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Connection Style | PLAIN (SCREW-IN CARTRIDGE) FIRST END |
| Minimum Operating Temp | -40.0 FAHRENHEIT DEGF |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Style Designator | SCREW-IN CARTRIDGE |
| Operating Pressure | 40.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Size | 0.500 INCHES IN |
| Thread Direction | RIGHT-HAND FIRST END |
| Maximum Operating Temp | 400.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Surface Treatment | NICKEL LOCATION NOT OTHERWISE SPECIFIED |
| Media for Which Designed | GAS, INERT SECOND RESPONSE |
| Media for Which Designed | AIR FIRST RESPONSE |
| Material | BRONZE BODY |
| Material | STEEL STAINLESS - USE STB000 FLOW CONTROL DEVICE |
| Thread Series Designator | NPT FIRST END |
| Opening Pressure Setting | 40.0 POUNDS PER SQUARE INCH LBS |
| Valve Operation Method | AUTOMATIC OR MANUAL |
| 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 |
|---|---|
| 7119443-001 | Naval Sea Systems Command (USA) |
| 112CSS-4-040 PRIMARY | Storm Manufacturing Group, Inc. Dba Buckner by Storm (USA) |
| 9889K308 | Mcmaster-Carr Supply Co (USA) |
NSN 4820-01-622-9675 is a Valve,safety Relief, manufactured by Storm Manufacturing Group, Inc. Dba Buckner by Storm, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-622-9675 has 3 manufacturer part numbers on file: 7119443-001 (Naval Sea Systems Command), 112CSS-4-040 (Storm Manufacturing Group, Inc. Dba Buckner by Storm), 9889K308 (Mcmaster-Carr Supply Co).
Key specifications for 112CSS-4-040: Flow Control Device: BALL; Nominal Pipe Size Accommodated: 0.500 INCHES FIRST END IN; Connection Style: PLAIN (SCREW-IN CARTRIDGE) FIRST END; Minimum Operating Temp: -40.0 FAHRENHEIT DEGF. 18 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.