The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-009-4058, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-009-4058 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | POPPET |
| Renewable Seat Ring Type | ANY ACCEPTABLE |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 3B |
| First End Thread Pitch Diameters | +1.0042 TO 1.0084 INCHES IN |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | GASKET SEAL |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Second End Style Designator | GASKET SEAL |
| First End Connection Type | THREADED INTERNAL BOSS |
| Second End Connection Type | THREADED INTERNAL BOSS |
| Thread Size and Series/type Designator | 1.062-12 ACLKA3B UNIFIED NATIONAL JOINT (UNJ) FIRST END |
| Thread Size and Series/type Designator | 7/8-14 UNIFIED NATIONAL JOINT FINE (UNJF) MODIFIED SECOND END |
| 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 |
|---|---|
| 38E95-3B | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-009-4058 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-01-009-4058: Flow Control Device: POPPET; Renewable Seat Ring Type: ANY ACCEPTABLE; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL. 18 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.