The Thermocouple,immersion, cataloged under National Stock Number 6685-01-548-7383, 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 Rdf Corporation. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 6685-01-548-7383 |
| Primary Part Number | 23700-5 |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Rdf Corporation |
| Status | ACTIVE |
| Mounting Thread Quantity | 28 PER INCH |
| Immersion Length | 4.690 INCHES NOMINAL IN |
| Operating Temp Range | -40.0 TO 400.0 FAHRENHEIT DEGF |
| Material | NICKEL PIERCING POINT |
| 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 |
|---|---|
| 23700-5 PRIMARY | Rdf Corporation (USA) |
| Reference | Meaning |
|---|---|
| RTEN-6-4TW | 5/2 Secondary reference U.S. Government activity |
| MIL-T-24388B | 4/1 Identification reference U.S. Government activity |
NSN 6685-01-548-7383 is a Thermocouple,immersion, manufactured by Rdf Corporation, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-548-7383 has 1 manufacturer part number on file: 23700-5 (Rdf Corporation).
Key specifications for 23700-5: Overall Length: 6.440 INCHES NOMINAL IN; Mounting Thread Quantity: 28 PER INCH; Immersion Length: 4.690 INCHES NOMINAL IN; Special Features: RESISTANCE 120.00 OHMS@32 DEGREES F, 200.76 OHMS@212 DEGREES F; TEMPERATURE RANGE MINUS 40 DEGREES F TO 400 DEGREES F. 4 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.