The Valve,safety Relief, cataloged under National Stock Number 4820-01-503-1715, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Electric Heater Co Dba Hubbell Electric Heater Co.. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-503-1715 |
| Primary Part Number | HSRV-5-75 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Electric Heater Co Dba Hubbell Electric Heater Co. |
| Status | ACTIVE |
| Style Designator | ANGLE |
| Opening Pressure Setting | 75.0 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 |
|---|---|
| HSRV-5-75 PRIMARY | The Electric Heater Co Dba Hubbell Electric Heater Co. (USA) |
| Reference | Meaning |
|---|---|
| 177119-5 | D/9 Drawing number reference only The Electric Heater Co Dba Hubbell Electric Heater Co. |
NSN 4820-01-503-1715 is a Valve,safety Relief, manufactured by The Electric Heater Co Dba Hubbell Electric Heater Co., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-503-1715 has 1 manufacturer part number on file: HSRV-5-75 (The Electric Heater Co Dba Hubbell Electric Heater Co.).
Key specifications for HSRV-5-75: Style Designator: ANGLE; Special Features: VALVE OPENS AT 210 DEGREES F OR OR 75 PSI; UNION NUT & TAIL PIECE ARE I.A.W. MIL-F-1183; Opening Pressure Setting: 75.0 POUNDS PER SQUARE INCH LBS; Valve Operation Method: AUTOMATIC OR MANUAL. 3 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.