The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-526-5455, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hiab Usa Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-526-5455 |
| Primary Part Number | 983-4761 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hiab Usa Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 4820-01-526-5455 is a Valve,relief,pressure and Temper, manufactured by Hiab Usa Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-526-5455 has 2 manufacturer part numbers on file: 4KK792 (Oshkosh Defense Llc), 983-4761 (Hiab Usa Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-526-5912. Verify interchangeability with system specifications before substitution.
Key specifications for 983-4761: Special Features: NHA IS VALVE, LINEAR, P/N 392-0534; Part Name Assigned by Controlling Agency: RELIEF VALVE; End Item Identification: HIMARS, RSV. MK37, 2320-01-504-5218. 0 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.