The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-146-4144, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-146-4144 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DISK |
| Second End Relationship with First End | IDENTICAL |
| Body Style | ANGLE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Thread Class | AAJG |
| First End Style Designator | SOCKET |
| End Connection Quantity | 2 |
| Outlet Pressure Range | 20.0 TO 80.0 CAMERA MOUNT |
| Valve Loading Method | BELLOWS |
| First End Connection Type | UNTHREADED INTERNAL PIPE |
| Material | COPPER ALLOY OR COPPER OR STEEL CORROSION RESISTING BODY |
| Maximum Inlet Pressure Rating | 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 |
| Reference | Meaning |
|---|---|
| 239AW 20/80L7/8 | 5/9 Secondary reference Singer Co the Controls Div Heating and Air Conditioning Controls |
| 239-193 15/75 L 7/8 | 3/9 Design control — primary reference Singer Co the Controls Div Heating and Air Conditioning Controls |
NSN 4820-01-146-4144 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-146-4144: Flow Control Device: DISK; Second End Relationship with First End: IDENTICAL; Body Style: ANGLE; Regulation Type: AUTOMATIC SINGLE STAGE. 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.