The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-220-8258, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 20 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-220-8258 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | PISTON, SPRING LOADED |
| Valve Stem Design | SINGLE SEAT |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | 1ST STAGE MANUAL, 2ND STAGE AUTOMATIC |
| First End Style Designator | PLAIN |
| Temp Rating | -50.0 FAHRENHEIT MINIMUM AND 450.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 30.0 TO 80.0 CAMERA MOUNT |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | BRONZE OR STEEL CORROSION RESISTING SEAT |
| Material | COPPER ALLOY OR STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | COPPER ALLOY OR STEEL CORROSION RESISTING STEM |
| Media for Which Designed | AIR AND STEAM AND WATER, OIL OR GAS |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 3/8-18 NPT FIRST END |
| Filter | INCLUDED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2B3-2B17-13000000D | 5/9 Secondary reference Ross Controls Incorporated |
| 2B3-2B17-13000000C | 5/9 Secondary reference Ross Controls Incorporated |
| 2B3-2B07-13000000D | 3/2 Design control — primary reference U.S. Government activity |
| D-3/8 SER NO 74256-01-83 | 5/9 Secondary reference U.S. Government activity |
| D-3/8 SER N0 74 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-220-8258 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-220-8258: Flow Control Device: PISTON, SPRING LOADED; Valve Stem Design: SINGLE SEAT; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL. 20 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.