The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-428-3187, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Barber-Colman Co Environmental Controls Div. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-428-3187 |
| Primary Part Number | VA-9314-303-4-8 |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Barber-Colman Co Environmental Controls Div |
| Status | ACTIVE |
| Flow Control Device | BALL, PORTED |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE |
| Third End Relationship with Preceding Ends | IDENTICAL WITH SECOND END |
| First End Style Designator | PLAIN |
| Temp Rating | -40.0 CELSIUS NOMINAL AND 281.0 CELSIUS MAXIMUM DEGC |
| End Connection Quantity | 3 |
| First End Connection Type | UNTHREADED EXTERNAL TUBE |
| Temp Adjustability | NOT ADJUSTABLE |
| First End Outside Diameter Tube Accommodated | 1.000 INCHES NOMINAL IN |
| Material | COPPER ALLOY BODY |
| Material | STEEL CORROSION RESISTING STEM |
| Material | COPPER ALLOY SEAT |
| Material | PLASTIC TETRAFLUOROETHYLENE PACKING |
| 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 |
|---|---|
| VA-9314-303-4-8 PRIMARY | Barber-Colman Co Environmental Controls Div (USA) |
| Reference | Meaning |
|---|---|
| VA-9314-303-4-P | 5/9 Secondary reference Barber-Colman Co Environmental Controls Div |
NSN 4820-01-428-3187 is a Valve,regulating,temperature, manufactured by Barber-Colman Co Environmental Controls Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-428-3187 has 1 manufacturer part number on file: VA-9314-303-4-8 (Barber-Colman Co Environmental Controls Div).
Key specifications for VA-9314-303-4-8: Flow Control Device: BALL, PORTED; Second End Relationship with First End: IDENTICAL; Body Style: TEE; Third End Relationship with Preceding Ends: IDENTICAL WITH SECOND END. 14 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.