The Valve,safety Relief, cataloged under National Stock Number 4820-01-188-8248, 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.. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | The Electric Heater Co Dba Hubbell Electric Heater Co. (CAGE 19857) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-188-8248 |
| Primary Part Number | 17722-7-60 PSI |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Electric Heater Co Dba Hubbell Electric Heater Co. |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| HSRV-1-60 | The Electric Heater Co Dba Hubbell Electric Heater Co. (USA) |
| 17722-7-60 PSI PRIMARY | The Electric Heater Co Dba Hubbell Electric Heater Co. (USA) |
| Reference | Meaning |
|---|---|
| 17722-7 | 5/9 Secondary reference The Electric Heater Co Dba Hubbell Electric Heater Co. |
| N131SL 17723-7 SET 85PSI | 5/9 Secondary reference The Electric Heater Co Dba Hubbell Electric Heater Co. |
| NSRV-1-85 | 5/9 Secondary reference The Electric Heater Co Dba Hubbell Electric Heater Co. |
| HSRV-1-50 | 5/9 Secondary reference The Electric Heater Co Dba Hubbell Electric Heater Co. |
NSN 4820-01-188-8248 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 4820-01-188-8248 has 2 manufacturer part numbers on file: HSRV-1-60 (The Electric Heater Co Dba Hubbell Electric Heater Co.), 17722-7-60 PSI (The Electric Heater Co Dba Hubbell Electric Heater Co.).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-509-9498. Verify interchangeability with system specifications before substitution.
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.