The Valve,safety Relief, cataloged under National Stock Number 4820-01-514-7912, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hhe Services, Inc.. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-514-7912 |
| Primary Part Number | HI-721-1000 ITEM 6 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hhe Services, Inc. |
| Status | ACTIVE |
| Flow Control Device | PISTON |
| Operating Pressure | 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Valve Operation Method | HYDRAULIC |
| 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 |
|---|---|
| RPIC-KAN | Sun Hydraulics Corporation (USA) |
| HI-721-1000 ITEM 6 PRIMARY | Hhe Services, Inc. (USA) |
NSN 4820-01-514-7912 is a Valve,safety Relief, manufactured by Hhe Services, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-514-7912 has 2 manufacturer part numbers on file: RPIC-KAN (Sun Hydraulics Corporation), HI-721-1000 ITEM 6 (Hhe Services, Inc.).
Key specifications for HI-721-1000 ITEM 6: Flow Control Device: PISTON; Operating Pressure: 5000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: 2-PORT RELIEF CARTRIDGES ARE PHYSICALLY AND FUNCTIONALLY INTERCHANGEABLE; Part Name Assigned by Controlling Agency: PILOT OPERATED, BALANCED PISTON, RELIEF VALVE. 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.