The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-446-3600, 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 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-446-3600 |
| Primary Part Number | R4R06-571-11-B5 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| Status | ACTIVE |
| End Connection Quantity | 2 |
| 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 |
|---|---|
| R4R06-571-11-B5 | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| R4R06-571-11-B5 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division (USA) |
| Reference | Meaning |
|---|---|
| C665BX004 REV A | 5/9 Secondary reference U.S. Government activity |
| C665BX004 | D/9 Drawing number reference only U.S. Government activity |
| R4R06-531-11-B5 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| R4R06-531-11-B5 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
NSN 4820-01-446-3600 is a Valve,regulating,fluid Pressure, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-446-3600 has 2 manufacturer part numbers on file: R4R06-571-11-B5 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division), R4R06-571-11-B5 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division).
Key specifications for R4R06-571-11-B5: End Connection Quantity: 2; Special Features: SUBPLATE MOUNTED; Part Name Assigned by Controlling Agency: VALVE, PRESSURE REDUCING SUBPLATE MOUNTING; End Item Identification: TARAWA CLASS LHA. 1 specification is 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.