The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4810-01-428-9909, is classified within Federal Supply Class 4810 (Valves, Powered) of the Valves group. The manufacturer of record is Actrol Parts. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4810-01-428-9909 |
| Primary Part Number | VB-3974-5 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4810 / 48 — Valves, Powered |
| Manufacturer | Actrol Parts |
| Status | ACTIVE |
| Flow Control Device | DISK |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| First End Style Designator | PLAIN |
| Temp Rating | 150.0 FAHRENHEIT NOMINAL DEGF |
| End Connection Quantity | 2 |
| Valve Loading Method | SPRING |
| First End Connection Type | THREADED INTERNAL PIPE |
| Material | BRASS SEAT |
| Material | COPPER ALLOY FLOW CONTROL DEVICE |
| Material | STEEL CORROSION RESISTING STEM |
| Media for Which Designed | STEAM OR WATER |
| Maximum Inlet Pressure Rating | ERR-060 |
| Thread Size and Series/type Designator | 1-11 1/2 NPT 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 |
| Part Number | Manufacturer |
|---|---|
| VB-3974-5 | Actrol Parts (AUS) |
| Reference | Meaning |
|---|---|
| VB-3974-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4810-01-428-9909 is a Valve,regulating,fluid Pressure, manufactured by Actrol Parts, classified under FSC 4810, Valves, Powered. Status: active.
NSN 4810-01-428-9909 has 1 manufacturer part number on file: VB-3974-5 (Actrol Parts).
Key specifications for VB-3974-5: Flow Control Device: DISK; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: IDENTICAL; Body Style: STRAIGHT THRU. 17 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.