The Thermocouple,immersion, cataloged under National Stock Number 6685-01-142-7379, 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 Solar Turbines Incorporated Dba Solar Turbines Incorporated. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-142-7379 |
| Primary Part Number | ST91174 |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Solar Turbines Incorporated Dba Solar Turbines Incorporated |
| Status | ACTIVE |
| Immersion Length | 3.000 INCHES NOMINAL IN |
| Unit Type | PROTECTIVE TUBE |
| 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 |
|---|---|
| ST91174 PRIMARY | Solar Turbines Incorporated Dba Solar Turbines Incorporated (USA) |
| Reference | Meaning |
|---|---|
| ST91174 | 5/9 Secondary reference Rtx Corporation Div Pratt & Whitney |
NSN 6685-01-142-7379 is a Thermocouple,immersion, manufactured by Solar Turbines Incorporated Dba Solar Turbines Incorporated, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-142-7379 has 1 manufacturer part number on file: ST91174 (Solar Turbines Incorporated Dba Solar Turbines Incorporated).
Key specifications for ST91174: Overall Length: 4.000 INCHES NOMINAL IN; Immersion Length: 3.000 INCHES NOMINAL IN; Unit Type: PROTECTIVE TUBE; End Item Identification: AIRCRAFT,STRATOLIFTER C-135. 2 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.