The Thermostat,flow Control, cataloged under National Stock Number 6685-00-178-9575, 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 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road). Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-178-9575 |
| Primary Part Number | 129260-3-1 |
| Item Name | Thermostat,flow Control |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) |
| Status | ACTIVE |
| Spring Operated Pressure Relief | NOT PROVIDED |
| Mounting Method | HOSE |
| Thread Direction | RIGHT-HAND |
| Operating Temp Rating | 600.0 FAHRENHEIT NOMINAL DEGF |
| Thermostat Type | ANY ACCEPTABLE |
| Usage Design | TEMPERATURE CONTROL |
| Thread Size and Series/type Designator | 1/2-20 UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 129260-3-1 PRIMARY | Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA) |
| 129260-3-1 | Service & Sales Inc (USA) |
| Reference | Meaning |
|---|---|
| 4A90208-103B | 1/2 Source control — Government-approved source U.S. Government activity |
| 129260-3-1 | 5/9 Secondary reference U.S. Government activity |
NSN 6685-00-178-9575 is a Thermostat,flow Control, manufactured by Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road), classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-178-9575 has 2 manufacturer part numbers on file: 129260-3-1 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 129260-3-1 (Service & Sales Inc).
Key specifications for 129260-3-1: Overall Height: 7.100 INCHES NOMINAL IN; Spring Operated Pressure Relief: NOT PROVIDED; Mounting Method: HOSE; Thread Direction: RIGHT-HAND. 7 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.
NSN 6685-00-178-9575 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.