The Thermocouple,contact, cataloged under National Stock Number 6685-00-182-7590, 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 Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.. Government technical data includes 4 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-00-182-7590 |
| Primary Part Number | 3018655 |
| Item Name | Thermocouple,contact |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. |
| Status | ACTIVE |
| Accommodated Wire Awg Size | 16 |
| Unit Type | PROTECTIVE TUBE |
| Material | COPPER AND NICKEL INDIVIDUAL WIRE INSULATION |
| Material | FIBERGLASS AND STEEL OUTER JACKET INSULATION/SHEATHING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 3018655 PRIMARY | Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp. (CAN) |
| MSC 7300-2 PRIMARY | Semco Instruments, Inc. Dba Harcosemco (USA) |
NSN 6685-00-182-7590 is a Thermocouple,contact, manufactured by Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp., classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-00-182-7590 has 2 manufacturer part numbers on file: 3018655 (Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.), MSC 7300-2 (Semco Instruments, Inc. Dba Harcosemco).
1 possible match (shared part number, not a government interchangeability claim): 5360-01-134-5602. Verify interchangeability with system specifications before substitution.
Key specifications for 3018655: Overall Length: 43.500 INCHES NOMINAL IN; Accommodated Wire Awg Size: 16; Unit Type: PROTECTIVE TUBE; Material: COPPER AND NICKEL INDIVIDUAL WIRE INSULATION. 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.
NSN 6685-00-182-7590 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.