The Thermocouple,heating Element, cataloged under National Stock Number 6685-01-247-2447, 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 Semco Instruments, Inc. Dba Harcosemco. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 6685-01-247-2447 |
| Primary Part Number | 6058T28AV2 |
| Item Name | Thermocouple,heating Element |
| FSC / FSG | 6685 / 66 — Pressure, Temperature, and Humidity Measuring and Controlling Instruments |
| Manufacturer | Semco Instruments, Inc. Dba Harcosemco |
| Status | ACTIVE |
| 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 |
|---|---|
| 6058T28AV2 PRIMARY | Semco Instruments, Inc. Dba Harcosemco (USA) |
| TC44300 PRIMARY | Semco Instruments, Inc. Dba Harcosemco (USA) |
| 100089-2 PRIMARY | Thermocontrol Inc Dba Thermocontrol Inc Div Tci (USA) |
| Reference | Meaning |
|---|---|
| 6058T28 | 5/2 Secondary reference U.S. Government activity |
| 6058T28P01 | 1/2 Source control — Government-approved source U.S. Government activity |
| 6058T28AV1 | 5/9 Secondary reference Thermocontrol Inc Dba Thermocontrol Inc Div Tci |
| 8TE52AAW | 3/2 Design control — primary reference U.S. Government activity |
| 6685PL0222861 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 6685-01-247-2447 is a Thermocouple,heating Element, manufactured by Semco Instruments, Inc. Dba Harcosemco, classified under FSC 6685, Pressure, Temperature, and Humidity Measuring and Controlling Instruments. Status: active.
NSN 6685-01-247-2447 has 3 manufacturer part numbers on file: 6058T28AV2 (Semco Instruments, Inc. Dba Harcosemco), TC44300 (Semco Instruments, Inc. Dba Harcosemco), 100089-2 (Thermocontrol Inc Dba Thermocontrol Inc Div Tci).
2 possible matches (shared part number, not a government interchangeability claim): 5995-01-496-3698, 5340-01-577-4831. Verify interchangeability with system specifications before substitution.
Key specifications for 6058T28AV2: End Item Identification: UH-60L/AH-64A ENGINE (T701C) A. 0 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 6685-01-247-2447 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.