The Thermocouple,immersion, cataloged under National Stock Number 6685-00-236-2225, 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 General Electric Company. Government technical data includes 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-00-236-2225 |
| Primary Part Number | 3039M34P01 |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | General Electric Company |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 THREADED NECK |
| Mounting Facility Screw Thread Series Designator | UNF |
| Accommodated Wire Awg Size | 16 |
| Mounting Thread Quantity | 14 PER INCH |
| Immersion Length | 3.786 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 1.000 INCHES IN |
| Unit Type | EXPOSED LOOP |
| Operating Temp Range | +0.0 TO 1900.0 FAHRENHEIT DEGF |
| Material | STEEL CORROSION RESISTING PROTECTIVE TUBE |
| Material | CERAMIC INDIVIDUAL WIRE INSULATION |
| Terminal Type and Quantity | 4 WIRE LEAD |
| 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 |
|---|---|
| 3039M34P01 | General Electric Company (USA) |
| Reference | Meaning |
|---|---|
| 8TY1AAK | 3/2 Design control — primary reference U.S. Government activity |
NSN 6685-00-236-2225 is a Thermocouple,immersion, manufactured by General Electric Company, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-236-2225 has 1 manufacturer part number on file: 3039M34P01 (General Electric Company).
Key specifications for 3039M34P01: Mounting Facility Type and Quantity: 1 THREADED NECK; Mounting Facility Screw Thread Series Designator: UNF; Overall Length: 4.720 INCHES NOMINAL IN; Accommodated Wire Awg Size: 16. 11 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.