The Valve,safety Relief, cataloged under National Stock Number 4820-01-603-6992, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is F.c.kingston Co. Dba Storm Manufacturing. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-603-6992 |
| Primary Part Number | KSV-12-1-045 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | F.c.kingston Co. Dba Storm Manufacturing |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Nominal Length | 1.91 INCHES FIRST END IN |
| Style Designator | STRAIGHT THRU |
| Material Document and Classification | ASTM B16 ASSN STD ALL MATERIAL RESPONSES BODY |
| Material Document and Classification | ASTM B16 ASSN STD ALL MATERIAL RESPONSES DISK |
| Material Document and Classification | ASTM B16 ASSN STD ALL MATERIAL RESPONSES STEM |
| Operating Pressure | 375.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Maximum Operating Temp | 250.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Material | COPPER ALLOY STEM |
| Material | SILICON DISK |
| Opening Pressure Setting | 45.0 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 |
|---|---|
| KSV-12-1-045 PRIMARY | F.c.kingston Co. Dba Storm Manufacturing (USA) |
NSN 4820-01-603-6992 is a Valve,safety Relief, manufactured by F.c.kingston Co. Dba Storm Manufacturing, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-603-6992 has 1 manufacturer part number on file: KSV-12-1-045 (F.c.kingston Co. Dba Storm Manufacturing).
Key specifications for KSV-12-1-045: Flow Control Device: DISK; Nominal Length: 1.91 INCHES FIRST END IN; Style Designator: STRAIGHT THRU; Material Document and Classification: ASTM B16 ASSN STD ALL MATERIAL RESPONSES BODY. 14 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.