The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-038-2355, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Victor Equipment Co. Government technical data includes 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-038-2355 |
| Primary Part Number | 0781-3772 AND AW-403 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Victor Equipment Co |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Renewable Seat Ring Type | THREADED |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Body Style | STRAIGHT THRU |
| Regulation Type | AUTOMATIC DOUBLE STAGE |
| First End Seat Angle in Deg | 30.0 |
| First End Thread Class | 2B |
| First End Style Designator | PLAIN |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Valve Loading Method | SPRING |
| Second End Style Designator | SWIVEL NUT, FLARED |
| First End Connection Type | THREADED INTERNAL TUBE |
| Second End Thread Pitch Diameters | +0.9100 TO 0.9136 INCHES IN |
| First End Outside Diameter Tube Accommodated | 0.625 INCHES NOMINAL IN |
| Material | BRASS SEAT |
| Material | RUBBER CHLOROPRENE CLASS CR FLOW CONTROL DEVICE |
| Outlet Pressure Accuracy Rating | ERR-060 |
| Media for Which Designed | ARGON AND HELIUM |
| Maximum Inlet Pressure Rating | ERR-060 |
| Second End Connection Type | THREADED EXTERNAL GAS CYLINDER |
| Furnished Items | AUTOMATIC RELIEF VALVE AND CYLINDER GAGE AND FLOWMETER |
| Thread Size and Series/type Designator | 0.960-14 NGO SECOND END |
| Thread Size and Series/type Designator | 5/8-18 UNF FIRST END |
| Outlet Pressure Setting | ERR-060 |
| Filter | 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 |
|---|---|
| 0781-3772 AND AW-403 PRIMARY | Victor Equipment Co (USA) |
| Reference | Meaning |
|---|---|
| 0781-6047 | 5/9 Secondary reference Victor Equipment Co |
NSN 4820-01-038-2355 is a Valve,regulating,fluid Pressure, manufactured by Victor Equipment Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-038-2355 has 1 manufacturer part number on file: 0781-3772 AND AW-403 (Victor Equipment Co).
Key specifications for 0781-3772 AND AW-403: Flow Control Device: DIAPHRAGM; Renewable Seat Ring Type: THREADED; First End Thread Direction: RIGHT-HAND; Second End Relationship with First End: NOT IDENTICAL. 28 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.