The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-056-9541, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Arrow Pneumatics Inc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-056-9541 |
| Primary Part Number | 1586 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Arrow Pneumatics Inc |
| Status | ACTIVE |
| Flow Control Device | PISTON, BOTTOM GUIDED |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | PRESSED-IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | OPTIONAL END |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 180.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Valve Loading Method | BELLOWS AND SPRING |
| Mounting Facility | BRACKET |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | BRASS SEAT |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | RUBBER PACKING |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 3/4-14 NPT FIRST END |
| Outlet Pressure Setting | ERR-060 |
| Filter | NOT INCLUDED |
| 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 |
|---|---|
| 1586 PRIMARY | Arrow Pneumatics Inc (USA) |
NSN 4820-01-056-9541 is a Valve,regulating,fluid Pressure, manufactured by Arrow Pneumatics Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-056-9541 has 1 manufacturer part number on file: 1586 (Arrow Pneumatics Inc).
Key specifications for 1586: Flow Control Device: PISTON, BOTTOM GUIDED; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: PRESSED-IN; First End Thread Direction: RIGHT-HAND. 22 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.