The Valve,safety Relief, cataloged under National Stock Number 4820-01-367-9902, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | Oshkosh Defense Llc (CAGE 75Q65); Haldex Brake Products Corporation (CAGE 06721) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-367-9902 |
| Primary Part Number | KN31250 |
| 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 | Y |
| Part Number | Manufacturer |
|---|---|
| 3539755 | Oshkosh Defense Llc (USA) |
| KN31250 PRIMARY | Haldex Brake Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| N-1178-BB | 5/9 Secondary reference Haldex Brake Products Corporation |
| 6HD841 | 5/9 Secondary reference Oshkosh Corp |
| 2GL643 | C/1 Advisory reference — outside the item-of-supply concept Oshkosh Corp |
| 3539755 | 7/9 Vendor item drawing reference Oshkosh Corp |
NSN 4820-01-367-9902 is a Valve,safety Relief, manufactured by Haldex Brake Products Corporation, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-367-9902 has 2 manufacturer part numbers on file: 3539755 (Oshkosh Defense Llc), KN31250 (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.