The Thermostat,flow Control, cataloged under National Stock Number 6685-00-164-3979, 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 Schneider Electric Systems Usa Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Schneider Electric Systems Usa Inc (CAGE 73475) |
| Parameter | Value |
|---|---|
| NSN | 6685-00-164-3979 |
| Primary Part Number | 1-1700-A2 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Schneider Electric Systems Usa Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Part Number | Manufacturer |
|---|---|
| 1-1700-A2 PRIMARY | Schneider Electric Systems Usa Inc (USA) |
| Reference | Meaning |
|---|---|
| J19780 | 5/9 Secondary reference Eaton Corp Controls Div |
| I-1700-A2 | C/1 Advisory reference — outside the item-of-supply concept Robertshaw Controls Co Grayson Controls Div |
| AT22961 | C/1 Advisory reference — outside the item-of-supply concept Deere & Company Dba John Deere Dubuque Works Div John Deere Dubuque Works |
| I-1700-A2 | C/1 Advisory reference — outside the item-of-supply concept Schneider Electric Systems Usa Inc |
| I-1700-A2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| AT22961 | 5/1 Secondary reference Deere & Co |
| 4E040-3 | C/1 Advisory reference — outside the item-of-supply concept Trw Canada Ltdautomotive Aftermarket Div |
| 4A885-2 | 5/9 Secondary reference Eaton Corp Controls Div |
NSN 6685-00-164-3979 is a Thermostat,flow Control, manufactured by Schneider Electric Systems Usa Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-164-3979 has 1 manufacturer part number on file: 1-1700-A2 (Schneider Electric Systems Usa Inc).
2 possible matches (shared part number, not a government interchangeability claim): 3020-00-989-0533, 6685-01-143-1217. Verify interchangeability with system specifications before substitution.
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.