The Valve,safety Relief, cataloged under National Stock Number 4820-01-437-1562, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Bosch Rexroth Ab. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-437-1562 |
| Primary Part Number | 4893717-801 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Bosch Rexroth Ab |
| 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 |
|---|---|
| 4893717-801 PRIMARY | Bosch Rexroth Ab (SWE) |
| Reference | Meaning |
|---|---|
| 437081-801 | C/1 Advisory reference — outside the item-of-supply concept Rexroth Corp the Mobile Hydraulics Div |
| 4893717-801 | 3/9 Design control — primary reference Hagglunds Drive Production Ab |
NSN 4820-01-437-1562 is a Valve,safety Relief, manufactured by Bosch Rexroth Ab, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-437-1562 has 1 manufacturer part number on file: 4893717-801 (Bosch Rexroth Ab).
Key specifications for 4893717-801: Style Designator: SCREW-IN CARTRIDGE; Special Features: FOR PUMP A4VG 125;SPRING LOADED;40-42 MPA; 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.