The Valve,safety Relief, cataloged under National Stock Number 4820-01-609-6782, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is John Deere Construction & Forestry Company. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery (CAGE Z0944); Rdo Equipment Rdo Equipment Pty Ltd (CAGE ZB955); John Deere Construction & Forestry Company (CAGE 1QME2) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-609-6782 |
| Primary Part Number | AT224820 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | John Deere Construction & Forestry Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| AT224820 | Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery (AUS) |
| AT224820 | Rdo Equipment Rdo Equipment Pty Ltd (AUS) |
| AT224820 PRIMARY | John Deere Construction & Forestry Company (USA) |
| Reference | Meaning |
|---|---|
| AT224820 | 3/9 Design control — primary reference John Deere Construction & Forestry Company Div Direct Governmental Sales |
NSN 4820-01-609-6782 is a Valve,safety Relief, manufactured by John Deere Construction & Forestry Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-609-6782 has 3 manufacturer part numbers on file: AT224820 (Hitachi Construction Machinery Aust Australia Pty Ltd Hitachi Construction Machinery), AT224820 (Rdo Equipment Rdo Equipment Pty Ltd), AT224820 (John Deere Construction & Forestry Company).
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.