The Thermocouple,contact, cataloged under National Stock Number 6685-01-524-3201, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 6685-01-524-3201 |
| Primary Part Number | NB1-ICSS-14U-4-TBSL |
| 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 THREADED PIPE CONNECTION |
| Mounting Facility Screw Thread Series Designator | NPT |
| Mounting Facility Nominal Screw Thread Diameter | 0.500 INCHES IN |
| Unit Type | SHIELDED |
| Material | STEEL CORROSION RESISTING OUTER JACKET INSULATION/SHEATHING |
| Material | IRON CAST ALLOY METER CASE |
| 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 |
|---|---|
| NB1-ICSS-14U-4-TBSL PRIMARY | Chromalox Inc Dba Chromalox Precision Heat and Control, Inc (USA) |
| 238683 | Allied Systems Company Dba Allied Systems Co (USA) |
| Reference | Meaning |
|---|---|
| NB1-ICSS-14U-4-TBSL | 5/9 Secondary reference Chromalox Corp |
NSN 6685-01-524-3201 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 6685-01-524-3201 has 2 manufacturer part numbers on file: NB1-ICSS-14U-4-TBSL (Chromalox Inc Dba Chromalox Precision Heat and Control, Inc), 238683 (Allied Systems Company Dba Allied Systems Co).
Key specifications for NB1-ICSS-14U-4-TBSL: Mounting Facility Type and Quantity: 1 THREADED PIPE CONNECTION; Mounting Facility Screw Thread Series Designator: NPT; Mounting Facility Nominal Screw Thread Diameter: 0.500 INCHES IN; Unit Type: SHIELDED. 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.