The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-537-2778, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Johnson Controls Inc Control Products Div. Government technical data includes 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-537-2778 |
| Primary Part Number | V43BT-7C |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Johnson Controls Inc Control Products Div |
| Status | ACTIVE |
| Flow Control Device | BELLOWS |
| Temp Rating | 160.0 FAHRENHEIT NOMINAL DEGF |
| End Connection Quantity | 2 |
| Material | IRON CAST BODY |
| Media for Which Designed | WATER |
| 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 |
|---|---|
| V43BT-7C PRIMARY | Johnson Controls Inc Control Products Div (USA) |
| Reference | Meaning |
|---|---|
| V43BT-7 | 5/9 Secondary reference Johnson Controls Inc Control Products Div |
NSN 4820-01-537-2778 is a Valve,regulating,temperature, manufactured by Johnson Controls Inc Control Products Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-537-2778 has 1 manufacturer part number on file: V43BT-7C (Johnson Controls Inc Control Products Div).
Key specifications for V43BT-7C: Flow Control Device: BELLOWS; Temp Rating: 160.0 FAHRENHEIT NOMINAL DEGF; End Connection Quantity: 2; Special Features: FLGD MARITIME 160-260 PILOT PRESSURE ACTIVATED WATER VALVE; USED ON WATER COOLED CONDENSERS W/LG FLOW CAPACITY; OPENS ON PILOT PRESSURE INCREASE; MAX STATIC WATER PRESSURE 150 PSI; MAX PRESSURE DROP 60 PSI; MAX BELLOWS PRESSURE 300 PSI; MAX WATER SUPPLY TEMP 160 DEG F; 4 HOLE AMSE FLANGED INLET/OUTLET DEGF. 5 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.