The Thermocouple,immersion, cataloged under National Stock Number 6685-01-044-1866, 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 Atec Inc. Government technical data includes 5 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-044-1866 |
| Primary Part Number | 103-2028SC |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Atec Inc |
| Status | ACTIVE |
| Immersion Length | 5.000 INCHES NOMINAL IN |
| Unit Type | BAYONET |
| Operating Temp Range | -18.0 TO 200.0 CELSIUS DEGC |
| Material | STEEL CORROSION RESISTING OVERALL |
| Terminal Type and Quantity | 2 PLUG |
| 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 |
|---|---|
| 103-2028SC | Atec Inc (USA) |
| Reference | Meaning |
|---|---|
| 6681440 | 3/9 Design control — primary reference Electro Products, Inc. |
| Q1-S4-12-U-5.75-J-2PSX | 5/9 Secondary reference Gay Engineering and Sales Co Inc |
NSN 6685-01-044-1866 is a Thermocouple,immersion, manufactured by Atec Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-044-1866 has 1 manufacturer part number on file: 103-2028SC (Atec Inc).
Key specifications for 103-2028SC: Overall Length: 8.938 INCHES NOMINAL IN; Immersion Length: 5.000 INCHES NOMINAL IN; Unit Type: BAYONET; Operating Temp Range: -18.0 TO 200.0 CELSIUS DEGC. 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.