The Valve,safety Relief, cataloged under National Stock Number 4820-01-016-5210, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Mid-State Sales, Inc. Div Defense Products Group. Government technical data includes 12 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 | 4820-01-016-5210 |
| Primary Part Number | 112C-4-25-SS |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Mid-State Sales, Inc. Div Defense Products Group |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Style Designator | STRAIGHT THRU |
| Operating Pressure | 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 0.250 INCHES ALL ENDS IN |
| Material | COPPER ALLOY BODY |
| Thread Series Designator | NPT ALL ENDS |
| Opening Pressure Setting | 25.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 21.0 CUBIC FEET PER MINUTE |
| 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 |
|---|---|
| 112C-4-25-SS PRIMARY | Mid-State Sales, Inc. Div Defense Products Group (USA) |
| 112C-1/4-NPT-25PSI-SS PRIMARY | F.c.kingston Co. Dba Storm Manufacturing (USA) |
| 810779-G1 | Telectro-Mek Inc (USA) |
NSN 4820-01-016-5210 is a Valve,safety Relief, manufactured by Mid-State Sales, Inc. Div Defense Products Group, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-016-5210 has 3 manufacturer part numbers on file: 112C-4-25-SS (Mid-State Sales, Inc. Div Defense Products Group), 112C-1/4-NPT-25PSI-SS (F.c.kingston Co. Dba Storm Manufacturing), 810779-G1 (Telectro-Mek Inc).
Key specifications for 112C-4-25-SS: Flow Control Device: DISK; Connection Style: PLAIN (PIPE) ALL ENDS; Connection Type: THREADED EXTERNAL PIPE ALL ENDS; 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.