The Valve,safety Relief, cataloged under National Stock Number 4820-01-528-9638, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-528-9638 |
| Primary Part Number | R5V12-615-12-A-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Nominal Length | 177.6 MILLIMETERS ALL ENDS MM |
| Nominal Width | 151.7 MILLIMETERS ALL ENDS MM |
| 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 |
|---|---|
| 026-37781-0 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| R5V12-615-12-A-1 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
NSN 4820-01-528-9638 is a Valve,safety Relief, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-528-9638 has 2 manufacturer part numbers on file: 026-37781-0 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division), R5V12-615-12-A-1 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).
Key specifications for R5V12-615-12-A-1: Flow Control Device: POPPET; Nominal Length: 177.6 MILLIMETERS ALL ENDS MM; Special Features: INLET PORT A 350 BAR, CONTROL TYPE: HAND KNOB 32MM DIA. MM; Nominal Width: 151.7 MILLIMETERS ALL ENDS MM. 3 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.