The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-038-5517, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Uniweld Products, Inc. Dba Uniweld Products Inc. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-038-5517 |
| Primary Part Number | 10 |
| Item Name | Valve,regulating,fluid Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Uniweld Products, Inc. Dba Uniweld Products Inc |
| Status | ACTIVE |
| Flow Control Device | DIAPHRAGM |
| Valve Stem Design | SINGLE SEAT |
| Renewable Seat Ring Type | THREADED |
| First End Thread Direction | RIGHT-HAND |
| Second End Relationship with First End | NOT IDENTICAL |
| Remote Actuation Method | DIAPHRAGM |
| Body Style | ANGLE |
| Regulation Type | MANUAL SINGLE STAGE |
| First End Seat Angle in Deg | 30.0 |
| First End Thread Class | 2A A |
| First End Style Designator | INVERTED FLARE |
| Temp Rating | -40.0 FAHRENHEIT MINIMUM AND 165.0 FAHRENHEIT MAXIMUM DEGF |
| End Connection Quantity | 2 |
| Second End Thread Direction | RIGHT-HAND |
| Manual Control Method | SCREW |
| Valve Loading Method | SPRING |
| Second End Style Designator | SWIVEL NUT, GAS |
| First End Connection Type | THREADED EXTERNAL TUBE |
| Second End Thread Pitch Diameters | +0.8616 TO 0.8652 INCHES IN |
| First End Outside Diameter Tube Accommodated | 0.187 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | OXYGEN, GASEOUS |
| Second End Connection Type | THREADED INTERNAL GAS CYLINDER |
| Furnished Items | CYLINDER GAGE AND OUTLET PRESSURE GAGE |
| Thread Size and Series/type Designator | 0.375-24 UNF FIRST END |
| Thread Size and Series/type Designator | 0.908-14 NGO SECOND 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 |
|---|---|
| 10 PRIMARY | Uniweld Products, Inc. Dba Uniweld Products Inc (USA) |
| REGULATOR OXYGEN RO PRIMARY | Uniweld Products, Inc. Dba Uniweld Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 31-020-000 | 5/9 Secondary reference Uniweld Products, Inc. Dba Uniweld Products Inc |
NSN 4820-01-038-5517 is a Valve,regulating,fluid Pressure, manufactured by Uniweld Products, Inc. Dba Uniweld Products Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-038-5517 has 2 manufacturer part numbers on file: 10 (Uniweld Products, Inc. Dba Uniweld Products Inc), REGULATOR OXYGEN RO (Uniweld Products, Inc. Dba Uniweld Products Inc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-726-2010. Verify interchangeability with system specifications before substitution.
Key specifications for 10: Flow Control Device: DIAPHRAGM; Valve Stem Design: SINGLE SEAT; Renewable Seat Ring Type: THREADED; First End Thread Direction: RIGHT-HAND. 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.