The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-444-9776, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 29 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-00-444-9776 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Second End Thread Class | 3B |
| Surface Treatment Document and Classification | MIL-E-15090 TYPE 3,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE |
| Body Style | TEE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Thread Class | 3B |
| Third End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST OR SECOND END |
| First End Style Designator | GASKET SEAL |
| End Connection Quantity | 3 |
| Second End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Mounting Facility | BOLTS |
| Third End Thread Direction | RIGHT-HAND |
| Second End Style Designator | GASKET SEAL |
| First End Connection Type | THREADED INTERNAL BOSS |
| Third End Thread Class | 3B |
| Surface Treatment | ENAMEL OUTSIDE |
| Third End Connection Type | THREADED INTERNAL BOSS |
| Media for Which Designed | AIR |
| Maximum Inlet Pressure Rating | ERR-060 |
| Third End Style Designator | GASKET SEAL |
| Second End Connection Type | THREADED INTERNAL BOSS |
| Thread Size and Series/type Designator | 0.437-20 UNIFIED NATIONAL JOINT FINE (UNJF) THIRD END |
| Thread Size and Series/type Designator | 0.562-18 UNIFIED NATIONAL JOINT FINE (UNJF) MODIFIED SECOND END |
| Thread Size and Series/type Designator | 0.750-16 UNIFIED NATIONAL JOINT FINE (UNJF) 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 |
| Reference | Meaning |
|---|---|
| 101800-9 | 3/2 Design control — primary reference U.S. Government activity |
| 4400B1272 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-444-9776 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
Key specifications for 4820-00-444-9776: Flow Control Device: DIAPHRAGM; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL; Second End Thread Class: 3B. 29 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.