The Thermostat,flow Control, cataloged under National Stock Number 6685-00-705-4197, 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 U S Army Tank Automotive Command Amsta-Im-Mm. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-705-4197 |
| Primary Part Number | 7054197 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Flow Control Device | CHOKE |
| FSC Application Data | ENGINE,NON-AIRCRAFT |
| Spring Operated Pressure Relief | NOT PROVIDED |
| Mounting Method | THREADED |
| Valve Travel Distance | 0.197 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Accessory Components and Quantity | 1 GASKET,COPPER |
| Operating Temp Rating | 190.0 FAHRENHEIT NOMINAL DEGF |
| Thermostat Type | BELLOWS |
| Usage Design | COOL RADIATOR WATER |
| Distance Across Flats | 1.750 INCHES NOMINAL IN |
| Opening Temp Rating | 120.0 FAHRENHEIT MINIMUM AND 130.0 FAHRENHEIT MAXIMUM DEGF |
| Thread Size and Series/type Designator | 1-1/2-18 NEF |
| 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 |
|---|---|
| 7054197 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| D8504694 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| D8504694 | 5/9 Secondary reference General Motors Corp |
NSN 6685-00-705-4197 is a Thermostat,flow Control, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-705-4197 has 1 manufacturer part number on file: 7054197 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5995-01-578-7449. Verify interchangeability with system specifications before substitution.
Key specifications for 7054197: Flow Control Device: CHOKE; Overall Height: 2.875 INCHES NOMINAL IN; FSC Application Data: ENGINE,NON-AIRCRAFT; Spring Operated Pressure Relief: NOT PROVIDED. 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.