The Thermostat,flow Control, cataloged under National Stock Number 6685-00-810-3926, 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 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-810-3926 |
| Primary Part Number | 10921755-2 |
| 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 | BY-PASS |
| Spring Operated Pressure Relief | NOT PROVIDED |
| Largest Outside Diameter | 2.878 INCHES NOMINAL IN |
| Mounting Method | FLANGE |
| Valve Travel Distance | 0.400 INCHES NOMINAL IN |
| Operating Temp Rating | 185.0 FAHRENHEIT NOMINAL DEGF |
| Thermostat Type | SOLID EXPANSION |
| Usage Design | CONTROL ENGINE COOLANT TEMP |
| Opening Temp Rating | 170.0 FAHRENHEIT NOMINAL DEGF |
| 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 |
|---|---|
| 10921755-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| VD10169 | 5/9 Secondary reference Scovill Inc |
| 6620008103926 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 6685-00-810-3926 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 6685-00-810-3926 has 1 manufacturer part number on file: 10921755-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10921755-2: Flow Control Device: BY-PASS; Overall Height: 4.746 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED; Largest Outside Diameter: 2.878 INCHES NOMINAL IN. 9 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.