The Valve,safety Relief, cataloged under National Stock Number 4820-01-558-3398, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Haldex Brake Products Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Haldex Brake Products Corporation (CAGE 06721) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-558-3398 |
| Primary Part Number | 90554950 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Haldex Brake Products Corporation |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 90554950 PRIMARY | Haldex Brake Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| 3600060 | 5/9 Secondary reference Oshkosh Corp |
| 90555267 | 5/9 Secondary reference Haldex Brake Products Corporation |
| 3600060 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 4820-01-558-3398 is a Valve,safety Relief, manufactured by Haldex Brake Products Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-558-3398 has 1 manufacturer part number on file: 90554950 (Haldex Brake Products Corporation).
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.