The Valve,safety Relief, cataloged under National Stock Number 4820-01-551-9258, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hydraforce Inc. Government technical data includes 1 specification, 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 | 4820-01-551-9258 |
| Primary Part Number | RV10-22A-0-N-35 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hydraforce Inc |
| Status | ACTIVE |
| Surface Treatment | ZINC LOCATION NOT OTHERWISE SPECIFIED |
| 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 |
|---|---|
| RV10-22A-0-N-35 PRIMARY | Hydraforce Inc (USA) |
NSN 4820-01-551-9258 is a Valve,safety Relief, manufactured by Hydraforce Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-551-9258 has 1 manufacturer part number on file: RV10-22A-0-N-35 (Hydraforce Inc).
Key specifications for RV10-22A-0-N-35: Special Features: MATERIAL: STEEL;ADJUSTMENT OPTION: 1/4" HEX ALLEN HEAD;PORTING: CARTRIDGE ONLY;SEALS: BUNA N (STD);SPRING RANGE: 17.24 TO 241.38 BAR (250 TO 3500 PSI); Surface Treatment: ZINC LOCATION NOT OTHERWISE SPECIFIED; Part Name Assigned by Controlling Agency: RELIEF,DIFFERENTIAL AREA POPPET; End Item Identification: NSN: 5410-01-441-8054. 1 specification is 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.