The Thermocouple,heating Element, cataloged under National Stock Number 6685-01-503-1703, 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 Pyromation Llc. Government technical data includes 3 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 6685-01-503-1703 |
| Primary Part Number | J48U-018-01C8RBEC-6HN63 |
| Item Name | Thermocouple,heating Element |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Pyromation Llc |
| Status | ACTIVE |
| Mounting Location | INSIDE METER CASE |
| Material | STEEL CORROSION RESISTING OVERALL |
| Terminal Type and Quantity | 1 CONNECTOR, PLUG |
| 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 |
|---|---|
| J48U-018-01C8RBEC-6HN63 PRIMARY | Pyromation Llc (USA) |
| Reference | Meaning |
|---|---|
| 1017448 | 5/1 Secondary reference Indeeco Llc Dba Indeeco |
| J48U-018-01C8RBEC-6HN53 | 5/9 Secondary reference Pyromation Llc |
NSN 6685-01-503-1703 is a Thermocouple,heating Element, manufactured by Pyromation Llc, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-503-1703 has 1 manufacturer part number on file: J48U-018-01C8RBEC-6HN63 (Pyromation Llc).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-533-8741. Verify interchangeability with system specifications before substitution.
Key specifications for J48U-018-01C8RBEC-6HN63: Mounting Location: INSIDE METER CASE; Special Features: SHEATH DIA 1/4IN; SHEATH LENGTH 18INCH; 1/2 INCH COMPRESSION FITTINGS IN; End Item Identification: HEATER; Material: STEEL CORROSION RESISTING OVERALL. 3 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.