The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-508-7975, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dh Instruments Inc.. Government technical data includes 9 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-508-7975 |
| Primary Part Number | 401756 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dh Instruments Inc. |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM AND DISK, PLUG TYPE |
| Valve Stem Design | SINGLE SEAT |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | SCREW-IN CARTRIDGE |
| Regulation Type | AUTOMATIC SINGLE STAGE |
| End Connection Quantity | 1 |
| Valve Loading Method | SPRING |
| Mounting Facility | EXTERNAL THREAD |
| Media for Which Designed | AIR |
| 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 |
|---|---|
| 401756 PRIMARY | Dh Instruments Inc. (USA) |
NSN 4820-01-508-7975 is a Valve,regulating,fluid Pressure, manufactured by Dh Instruments Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-508-7975 has 1 manufacturer part number on file: 401756 (Dh Instruments Inc.).
Key specifications for 401756: Flow Control Device: DIAPHRAGM AND DISK, PLUG TYPE; Valve Stem Design: SINGLE SEAT; Remote Actuation Method: DIAPHRAGM; Body Style: SCREW-IN CARTRIDGE. 9 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.