The Thermocouple,contact, cataloged under National Stock Number 6685-01-693-0337, 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 Chromalox Inc Dba Chromalox Precision Heat and Control, Inc. Government technical data includes 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-693-0337 |
| Primary Part Number | 864516-001 |
| Item Name | Thermocouple,contact |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 EXTERNAL PIPE CONNECTION |
| Mounting Facility Screw Thread Series Designator | NPT |
| Mounting Facility Nominal Screw Thread Diameter | 0.750 INCHES IN |
| Unit Type | BAYONET |
| Operating Temp Range | -20.0 TO 600.0 CELSIUS DEGC |
| Material | STEEL COMP 304 PROTECTIVE TUBE |
| 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 |
|---|---|
| 864516-001 PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| Reference | Meaning |
|---|---|
| Z9489 | D/9 Drawing number reference only Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
| 8645-16001 | 3/9 Design control — primary reference Gic Llc Div Dba Gic Thermodynamics |
| THA-JUAC-4H5-N-WNN-AY-NN | 5/9 Secondary reference Chromalox Inc Dba Chromalox Precision Heat and Control, Inc |
NSN 6685-01-693-0337 is a Thermocouple,contact, manufactured by Chromalox Inc Dba Chromalox Precision Heat and Control, Inc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-693-0337 has 1 manufacturer part number on file: 864516-001 (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc).
Key specifications for 864516-001: Mounting Facility Type and Quantity: 1 EXTERNAL PIPE CONNECTION; Mounting Facility Screw Thread Series Designator: NPT; Mounting Facility Nominal Screw Thread Diameter: 0.750 INCHES IN; Unit Type: BAYONET. 6 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.