The Valve,regulating,temperature, cataloged under National Stock Number 4820-01-561-1771, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 15 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-561-1771 |
| Primary Part Number | DA866T-75CM/50M-203-50S |
| Item Name | Valve,regulating,temperature |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| Flow Control Device | BELLOWS |
| Second End Relationship with First End | IDENTICAL |
| First End Flange Thickness | 0.625 INCHES NOMINAL IN |
| First End Flange Outside Diameter | 6.000 INCHES NOMINAL IN |
| First End Style Designator | PLAIN |
| Temp Rating | 90.0 FAHRENHEIT MINIMUM AND 140.0 FAHRENHEIT MAXIMUM DEGF |
| First End Bolt Hole Diameter | 0.750 INCHES NOMINAL IN |
| First End Bolt Circle Diameter | 4.750 INCHES NOMINAL IN |
| End Connection Quantity | 2 |
| Valve Size | 2.000 INCHES IN |
| First End Connection Type | PLAIN FACE FLANGE |
| First End Flange Shape Style | ROUND W/ BOLT HOLES |
| Thermostatic Element | INTEGRAL W/VALVE |
| Material | COPPER ALLOY BODY |
| Media for Which Designed | WATER, SALT |
| 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 |
|---|---|
| DA866T-75CM/50M-203-50S PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
| 3005180 FIND 7 | Vt Maritime Dynamics, Inc (USA) |
NSN 4820-01-561-1771 is a Valve,regulating,temperature, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-561-1771 has 2 manufacturer part numbers on file: DA866T-75CM/50M-203-50S (Metrex Valve Corp. Dba Metrex Valve Corp), 3005180 FIND 7 (Vt Maritime Dynamics, Inc).
Key specifications for DA866T-75CM/50M-203-50S: Flow Control Device: BELLOWS; Second End Relationship with First End: IDENTICAL; First End Flange Thickness: 0.625 INCHES NOMINAL IN; First End Flange Outside Diameter: 6.000 INCHES NOMINAL IN. 15 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.