The Thermocouple,heating Element, cataloged under National Stock Number 6685-01-439-4122, 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 Cincinnati Gearing Systems Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Thermocouple,heating Element |
| FSC / FSG | 6685 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments (FSG 66) |
| Manufacturers | Cincinnati Gearing Systems Inc (CAGE 3BNF6) |
| Parameter | Value |
|---|---|
| NSN | 6685-01-439-4122 |
| Primary Part Number | 90-9350-01200 |
| Item Name | Thermocouple,heating Element |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Cincinnati Gearing Systems Inc |
| Status | ACTIVE |
| 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 |
|---|---|
| 90-9350-01200 PRIMARY | Cincinnati Gearing Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 15-0500-03697 PC 126 | 5/9 Secondary reference The Cincinnati Gear Company Dba Power Transmission Systems |
| 15-0500-03697 | 5/9 Secondary reference The Cincinnati Gear Company Dba Power Transmission Systems |
| 90-9350-01200 | 5/9 Secondary reference The Cincinnati Gear Company Dba Power Transmission Systems |
NSN 6685-01-439-4122 is a Thermocouple,heating Element, manufactured by Cincinnati Gearing Systems Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-439-4122 has 1 manufacturer part number on file: 90-9350-01200 (Cincinnati Gearing Systems Inc).
1 possible match (shared part number, not a government interchangeability claim): 3010-01-440-3895. 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.