The Thermostat,flow Control, cataloged under National Stock Number 6685-01-047-2811, 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 Cummins Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-047-2811 |
| Primary Part Number | 204586 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Cummins Inc. |
| Status | ACTIVE |
| Spring Operated Pressure Relief | PROVIDED |
| Mounting Method | CLAMP |
| Thermostat Type | COIL SPRING BIMETALLIC |
| Test Data Document | 15434-204586 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Usage Design | CONTROL COMPRESSOR CYCLING |
| 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 |
|---|---|
| 204586 PRIMARY | Cummins Inc. (USA) |
| CT2100-07 | Caltherm Corp (USA) |
| Reference | Meaning |
|---|---|
| 459-6509 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 6685010472811 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| MA207-21163 | 5/9 Secondary reference Am General Llc |
| 204586 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
NSN 6685-01-047-2811 is a Thermostat,flow Control, manufactured by Cummins Inc., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-047-2811 has 2 manufacturer part numbers on file: 204586 (Cummins Inc.), CT2100-07 (Caltherm Corp).
1 possible match (shared part number, not a government interchangeability claim): 2930-01-067-1431. Verify interchangeability with system specifications before substitution.
Key specifications for 204586: Spring Operated Pressure Relief: PROVIDED; Mounting Method: CLAMP; Thermostat Type: COIL SPRING BIMETALLIC; Test Data Document: 15434-204586 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING). 5 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.