The Valve,safety Relief, cataloged under National Stock Number 4820-01-335-7212, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Deere & Company Dba Deere John Co. Government technical data includes 4 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-335-7212 |
| Primary Part Number | AT159226 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Deere & Company Dba Deere John Co |
| Status | ACTIVE |
| Disk Loading Method | SPRING |
| Material | STEEL BODY |
| Opening Pressure Setting | 2975.0 POUNDS PER SQUARE INCH LBS |
| 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 |
|---|---|
| AT159226 PRIMARY | Deere & Company Dba Deere John Co (USA) |
| AT101313 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| AT101313 | 5/9 Secondary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
| AT101313 | 5/9 Secondary reference Deere & Co |
| AT159226 | 5/9 Secondary reference Deere & Co |
NSN 4820-01-335-7212 is a Valve,safety Relief, manufactured by Deere & Company Dba Deere John Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-335-7212 has 2 manufacturer part numbers on file: AT159226 (Deere & Company Dba Deere John Co), AT101313 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
Key specifications for AT159226: Disk Loading Method: SPRING; End Item Identification: DEERE AND CO BACKHOE LOADER TRACTOR MODEL NO. 410C,510C,AND 610C; Material: STEEL BODY; Opening Pressure Setting: 2975.0 POUNDS PER SQUARE INCH LBS. 4 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.