The Valve,water Mixing, cataloged under National Stock Number 4510-01-679-5966, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Watts Regulator Company. Government technical data includes 13 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 | 4510-01-679-5966 |
| Primary Part Number | 6550791 |
| Item Name | Valve,water Mixing |
| FSC / FSG | 4510 / 45 — Plumbing Fixtures and Accessories |
| Manufacturer | Watts Regulator Company |
| Status | ACTIVE |
| First End Thread Series Designator | NPT |
| First End Thread Direction | RIGHT-HAND |
| Temp Rating | 150.0 FAHRENHEIT DEGF |
| Second End Relationship with First End | IDENTICAL |
| Body Style | TEE GIVE "ADQL" AND "ADQM" ONLY WHEN FLANGED ALL ENDS |
| Third End Relationship with Preceding Ends | IDENTICAL WITH FIRST END |
| End Connection Quantity | 3 |
| Operating Pressure | 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS |
| First End Connection Type | THREADED INTERNAL PIPE |
| Surface Treatment | COPPER ALLOY OUTSIDE |
| Material | COPPER ALLOY BODY |
| Valve Discharge Flow Rate | 13.0 GALLONS PER MINUTE |
| First End Nominal Thread Size | 0.500 INCHES IN |
| 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 |
|---|---|
| 6550791 PRIMARY | Watts Regulator Company (USA) |
| LFMMVM1-UT 1/2 PRIMARY | Watts Regulator Company (USA) |
NSN 4510-01-679-5966 is a Valve,water Mixing, manufactured by Watts Regulator Company, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
NSN 4510-01-679-5966 has 2 manufacturer part numbers on file: 6550791 (Watts Regulator Company), LFMMVM1-UT 1/2 (Watts Regulator Company).
Key specifications for 6550791: First End Thread Series Designator: NPT; First End Thread Direction: RIGHT-HAND; Temp Rating: 150.0 FAHRENHEIT DEGF; Second End Relationship with First End: IDENTICAL. 13 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.