PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77039Insulator,bushing

Telemechanics Inc · NSN 5970-00-391-9775 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-391-9775 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-391-9775. Primary manufacturer part number: 77039.
Features
  • Insulator,bushing — FSC 5970
  • 3 verified cross-references
  • Primary manufacturer: Telemechanics Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,bushing, cataloged under National Stock Number 5970-00-391-9775, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Telemechanics Inc. This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameInsulator,bushing
FSC / FSG5970 — No Item Name Available (FSG 59)
ManufacturersAt and T Corp (CAGE 70408); Telemechanics Inc (CAGE 57712); American Telephone and Telegraph Co (CAGE 64959)
Technical Specifications
ParameterValue
NSN5970-00-391-9775
Primary Part Number77039
Item NameInsulator,bushing
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerTelemechanics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-144-8865 INTERCHANGEABLE
Bearing,ball,annular
5962-01-037-4479LM4250H-883B INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
5962-01-252-7942 INTERCHANGEABLE
Microcircuit,linear
Cross-Reference Index
Part NumberManufacturer
77039 At and T Corp (USA)
77039 PRIMARY Telemechanics Inc (USA)
77039 American Telephone and Telegraph Co (USA)
Related Parts
3110-00-144-8865INTERCHANGEABLE
BEARING,BALL,ANNULAR
5962-01-037-4479INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM4250H-883B
5962-01-252-7942INTERCHANGEABLE
MICROCIRCUIT,LINEAR

Frequently Asked Questions

What is NSN 5970-00-391-9775?

NSN 5970-00-391-9775 is a Insulator,bushing, manufactured by Telemechanics Inc, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-391-9775?

NSN 5970-00-391-9775 has 3 cross-referenced part numbers: 77039 (At and T Corp), 77039 (Telemechanics Inc), 77039 (American Telephone and Telegraph Co).

What NSN replaces 5970-00-391-9775?

There are 3 known substitutes for 5970-00-391-9775: 3110-00-144-8865, 5962-01-037-4479, 5962-01-252-7942. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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