The Valve,safety Relief, cataloged under National Stock Number 4820-01-680-1255, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hiab Usa Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-680-1255 |
| Primary Part Number | 387-5441 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hiab Usa Inc |
| Status | ACTIVE |
| Style Designator | STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY. |
| Material | STEEL BODY |
| 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 |
|---|---|
| 387-5441 PRIMARY | Hiab Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| 4466517 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4820-01-680-1255 is a Valve,safety Relief, manufactured by Hiab Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-680-1255 has 1 manufacturer part number on file: 387-5441 (Hiab Usa Inc).
Key specifications for 387-5441: Style Designator: STRAIGHT THRU NOTE: TO BE USED FOR VALVE BODIES OF ONE SECTION ONLY.; Part Name Assigned by Controlling Agency: VALVE THROTTLE, TILT FRAME, CTRL; End Item Identification: 2320-01-534-1887; TRUCK, CARGO; Material: STEEL BODY. 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.