The Insulator,reset Switch, cataloged under National Stock Number 5970-00-823-9142, is classified within Federal Supply Class 5970 (Electrical Insulators and Insulating Materials) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telemechanics Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5970-00-823-9142 |
| Primary Part Number | 139280 |
| Item Name | Insulator,reset Switch |
| FSC / FSG | 5970 / 59 — Electrical Insulators and Insulating Materials |
| Manufacturer | Telemechanics Inc |
| Status | ACTIVE |
| FSC Application Data | TELETYPE AND FACSMILE EQUIPMENT |
| 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 |
|---|---|
| 139280 PRIMARY | Telemechanics Inc (USA) |
| Reference | Meaning |
|---|---|
| 139280 | 5/9 Secondary reference American Telephone and Telegraph Co |
| 139280 | 5/9 Secondary reference At and T Corp |
NSN 5970-00-823-9142 is a Insulator,reset Switch, manufactured by Telemechanics Inc, classified under FSC 5970, Electrical Insulators and Insulating Materials. Status: active.
NSN 5970-00-823-9142 has 1 manufacturer part number on file: 139280 (Telemechanics Inc).
1 possible match (shared part number, not a government interchangeability claim): 1660-00-947-2502. Verify interchangeability with system specifications before substitution.
Key specifications for 139280: FSC Application Data: TELETYPE AND FACSMILE EQUIPMENT. 1 specification is 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.