The Valve,safety Relief, cataloged under National Stock Number 4820-01-437-1481, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Rexroth Corp the Mobile Hydraulics Div. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-437-1481 |
| Primary Part Number | HU09437081 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Rexroth Corp the Mobile Hydraulics Div |
| Status | ACTIVE |
| Style Designator | SCREW-IN CARTRIDGE |
| 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 |
|---|---|
| HU09437081 PRIMARY | Rexroth Corp the Mobile Hydraulics Div (USA) |
| 4893717-802 PRIMARY | Bosch Rexroth Ab (SWE) |
| Reference | Meaning |
|---|---|
| 4893717-802 | 5/9 Secondary reference Hagglunds Drive Production Ab |
| 437081-802 | C/1 Advisory reference — outside the item-of-supply concept Rexroth Corp the Mobile Hydraulics Div |
NSN 4820-01-437-1481 is a Valve,safety Relief, manufactured by Rexroth Corp the Mobile Hydraulics Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-437-1481 has 2 manufacturer part numbers on file: HU09437081 (Rexroth Corp the Mobile Hydraulics Div), 4893717-802 (Bosch Rexroth Ab).
Key specifications for HU09437081: Style Designator: SCREW-IN CARTRIDGE; Special Features: FOR PUMP A4VG 125;32-34 MPA;SPRING LOADED; End Item Identification: AXIAL PISTON,VIRTUAL DISPLACEMENT PUMP;REXROTH CORP,MODEL AA4VG180; Valve Operation Method: AUTOMATIC. 2 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.