PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B4.8-5Insulator,feedthru

Lektro, Inc. · NSN 5970-01-543-8871 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-543-8871 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-543-8871. Primary manufacturer part number: B4.8-5.
Features
  • Insulator,feedthru — FSC 5970
  • 1 verified cross-reference
  • Primary manufacturer: Lektro, Inc.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulator,feedthru, cataloged under National Stock Number 5970-01-543-8871, 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 Lektro, Inc.. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-543-8871
Primary Part NumberB4.8-5
Item NameInsulator,feedthru
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerLektro, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5995-00-350-7710B-48-5 INTERCHANGEABLE
Cord Assembly,electrical
Fluke Electronics Corp
5999-00-547-8724 INTERCHANGEABLE
Heater,thermal Release
5940-01-168-7635MS21004-12 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
B4.8-5 Lektro, Inc. (USA)
Related Parts
5995-00-350-7710INTERCHANGEABLE
CORD ASSEMBLY,ELECTRICAL
B-48-5
5999-00-547-8724INTERCHANGEABLE
HEATER,THERMAL RELEASE
5940-01-168-7635INTERCHANGEABLE
TERMINAL,LUG
MS21004-12

Frequently Asked Questions

What is NSN 5970-01-543-8871?

NSN 5970-01-543-8871 is a Insulator,feedthru, manufactured by Lektro, Inc., classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-543-8871?

NSN 5970-01-543-8871 has 1 cross-referenced part number: B4.8-5 (Lektro, Inc.).

What NSN replaces 5970-01-543-8871?

There are 3 known substitutes for 5970-01-543-8871: 5995-00-350-7710, 5999-00-547-8724, 5940-01-168-7635. Verify interchangeability with system specifications before substitution.

What are the specifications of B4.8-5?

Key specifications for B4.8-5: End Item Identification: TOWBARLESS AIRCRAFT TUG; Special Features: SHORT YELLOW INSULATOR. 2 total characteristics are documented in the Federal Logistics Information System.

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