The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-00-326-6504, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The Boeing Company. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-326-6504 |
| Primary Part Number | 3472034 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Flow Control Device | STEM AND INTEGRAL DISK |
| Valve Stem Design | SINGLE SEAT |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Remote Actuation Method | BELLOWS AND DIAPHRAGM |
| 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 |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 250.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 3 |
| Valve Loading Method | SPRING |
| Mounting Facility | BRACKET |
| Third End Thread Direction | RIGHT-HAND |
| First End Connection Type | THREADED INTERNAL BOSS |
| Third End Thread Class | 3B |
| Third End Connection Type | THREADED INTERNAL BOSS |
| Material | RUBBER SYNTHETIC PACKING |
| Material | STEEL CORROSION RESISTING FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING SEAT |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | HYDRAULIC FLUID, PHOSPHATE-ESTER BASE |
| Maximum Inlet Pressure Rating | ERR-060 |
| Third End Style Designator | GASKET SEAL |
| Thread Size and Series/type Designator | 9/16-18 UNF FIRST END |
| Thread Size and Series/type Designator | 7/16-20 UNF THIRD 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 |
| Part Number | Manufacturer |
|---|---|
| 3472034 | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 312245 | 3/2 Design control — primary reference U.S. Government activity |
| 3472034 | 5/2 Secondary reference U.S. Government activity |
NSN 4820-00-326-6504 is a Valve,regulating,fluid Pressure, manufactured by The Boeing Company, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-326-6504 has 1 manufacturer part number on file: 3472034 (The Boeing Company).
1 possible match (shared part number, not a government interchangeability claim): 5935-01-042-8396. Verify interchangeability with system specifications before substitution.
Key specifications for 3472034: Flow Control Device: STEM AND INTEGRAL DISK; Valve Stem Design: SINGLE SEAT; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL. 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.