The Thermocouple,immersion, cataloged under National Stock Number 6685-01-014-8140, 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 Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-014-8140 |
| Primary Part Number | 56B3R |
| Item Name | Thermocouple,immersion |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas |
| Status | ACTIVE |
| Mounting Facility Screw Thread Series Designator | UNF |
| Mounting Thread Quantity | 16 PER INCH |
| Immersion Length | 0.850 INCHES NOMINAL IN |
| Mounting Facility Nominal Screw Thread Diameter | 0.750 INCHES IN |
| Unit Type | PROTECTIVE TUBE |
| Operating Temp Range | -70.0 TO 300.0 CELSIUS DEGC |
| Terminal Type and Quantity | 1 SOCKET |
| 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 |
|---|---|
| 56B3R PRIMARY | Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas (USA) |
| 56B3R | Rosemount Aerospace Inc Dba Rosemount Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| 56B3R | 5/9 Secondary reference Horizon Aerospace Llc Dba Magnetics Division |
NSN 6685-01-014-8140 is a Thermocouple,immersion, manufactured by Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-014-8140 has 2 manufacturer part numbers on file: 56B3R (Rosemount Aerospace Inc. Dba Rosemount Aerospace Division Div Utas), 56B3R (Rosemount Aerospace Inc Dba Rosemount Aerospace Inc).
Key specifications for 56B3R: Mounting Facility Screw Thread Series Designator: UNF; Overall Length: 2.038 INCHES NOMINAL IN; Mounting Thread Quantity: 16 PER INCH; Immersion Length: 0.850 INCHES NOMINAL IN. 7 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.