The Thermostat,flow Control, cataloged under National Stock Number 6685-00-522-7340, is classified within Federal Supply Class 6685 (Pressure, Temperature, and Humidity Measuring and Controlling Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Triumph Thermal Systems, Llc. Government technical data includes 13 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-522-7340 |
| Primary Part Number | U512195-2 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Triumph Thermal Systems, Llc |
| Status | ACTIVE |
| Flow Control Device | BY-PASS |
| Spring Operated Pressure Relief | PROVIDED |
| Largest Outside Diameter | 1.500 INCHES NOMINAL IN |
| Mounting Method | THREADED |
| Valve Travel Distance | 0.385 INCHES NOMINAL IN |
| Closing Pressure Setting | 35.0 POUNDS PER SQUARE INCH NOMINAL LBS |
| Thread Direction | RIGHT-HAND |
| Operating Temp Rating | 31.0 FAHRENHEIT NOMINAL DEGF |
| Thermostat Type | SOLID EXPANSION |
| Opening Pressure Setting | ERR-060 |
| Usage Design | COOL TRANSMISSION OIL |
| Opening Temp Rating | 29.0 FAHRENHEIT NOMINAL DEGF |
| Thread Size and Series/type Designator | 1-1/4-18 UNEF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| U512195-2 PRIMARY | Triumph Thermal Systems, Llc (USA) |
NSN 6685-00-522-7340 is a Thermostat,flow Control, manufactured by Triumph Thermal Systems, Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-522-7340 has 1 manufacturer part number on file: U512195-2 (Triumph Thermal Systems, Llc).
Key specifications for U512195-2: Flow Control Device: BY-PASS; Overall Height: 2.591 INCHES NOMINAL IN; Spring Operated Pressure Relief: PROVIDED; Largest Outside Diameter: 1.500 INCHES NOMINAL IN. 13 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.