The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-509-4696, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 26 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-509-4696 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| FSC Application Data | HYDRAULIC SYSTEM,AIRCRAFT |
| Renewable Seat Ring Type | PRESSED-IN |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | PISTON |
| Body Style | TEE ANGLE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Thread Class | 3B |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| First End Style Designator | GASKET SEAL |
| Fourth End Connection Type | THREADED INTERNAL BOSS |
| End Connection Quantity | 4 |
| Outlet Pressure Range | 1250.0 TO 1500.0 CAMERA MOUNT |
| Fourth End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Fourth End Style Designator | GASKET SEAL |
| First End Connection Type | THREADED INTERNAL BOSS |
| Fourth End Relationship with Preceding Ends | NOT IDENTICAL WITH FIRST, SECOND OR THIRD END |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | HYDROCARBON FUELS AND OILS |
| Maximum Inlet Pressure Rating | ERR-060 |
| Fourth End Thread Class | 3B |
| Thread Size and Series/type Designator | 0.4375-20 UNIFIED NATIONAL JOINT FINE (UNJF) FOURTH END |
| Thread Size and Series/type Designator | 0.7500-16 UNIFIED NATIONAL JOINT FINE (UNJF) FIRST 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 |
|---|---|
| MIL-V-5519 | 5/1 Secondary reference Real-Time Laboratories, Llc |
| AN6295-1 | 2/2 Government specification standardization U.S. Government activity |
| MIL-V-5519 | 4/1 Identification reference U.S. Government activity |
NSN 4820-00-509-4696 is a Valve,regulating,fluid Pressure, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 4820-00-593-5103. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-00-509-4696: FSC Application Data: HYDRAULIC SYSTEM,AIRCRAFT; Renewable Seat Ring Type: PRESSED-IN; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL. 26 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.