The Valve,safety Relief, cataloged under National Stock Number 4820-01-356-2636, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-356-2636 |
| Primary Part Number | 2983254 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division |
| Status | ACTIVE |
| Connection Style | PLAIN (SCREW-IN CARTRIDGE) ALL ENDS |
| Connection Type | THREADED CARTRIDGE ALL ENDS |
| Style Designator | SCREW-IN CARTRIDGE |
| Bonnet Type | INSIDE SPRING |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Nominal Thread Size | 1.062 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Bonnet Attachment Method | BOLTED |
| Thread Class | 2A ALL ENDS A |
| Thread Series Designator | UNF ALL ENDS |
| Opening Pressure Setting | 4000.0 POUNDS PER SQUARE INCH LBS |
| Valve Discharge Flow Rate | 6.0 GALLONS PER MINUTE |
| 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 |
|---|---|
| 2HG397 | Oshkosh Defense Llc (USA) |
| 2983254 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division (USA) |
| 7-926-002205 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| 7-926-002205 | Grove U.s. Llc Dba Grove Us Llc (USA) |
| 7-926-002205 | Amz Alabama Inc. (USA) |
| Reference | Meaning |
|---|---|
| 2HG397 | 5/9 Secondary reference Oshkosh Corp |
NSN 4820-01-356-2636 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-356-2636 has 5 manufacturer part numbers on file: 2HG397 (Oshkosh Defense Llc), 2983254 (Parker-Hannifin Corporation Dba Pneutronics Div Gear Pump Division), 7-926-002205 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc), 7-926-002205 (Grove U.s. Llc Dba Grove Us Llc), 7-926-002205 (Amz Alabama Inc.).
Key specifications for 2983254: Connection Style: PLAIN (SCREW-IN CARTRIDGE) ALL ENDS; Connection Type: THREADED CARTRIDGE ALL ENDS; Style Designator: SCREW-IN CARTRIDGE; Bonnet Type: INSIDE SPRING. 13 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.