PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K66Insulation Sheet,electrical

Rbx Industries · NSN 5970-01-321-7741 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-321-7741 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-321-7741. Primary manufacturer part number: K66.
Features
  • Insulation Sheet,electrical — FSC 5970
  • Length: 48.000 INCHES NOMINAL IN
  • Width: 36.000 INCHES NOMINAL IN
  • Thickness: 0.625 INCHES NOMINAL IN
  • 1 verified cross-reference
  • Primary manufacturer: Rbx Industries
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulation Sheet,electrical, cataloged under National Stock Number 5970-01-321-7741, 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 Rbx Industries. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-321-7741
Primary Part NumberK66
Item NameInsulation Sheet,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerRbx Industries
StatusACTIVE
Length48.000 INCHES NOMINAL IN
Width36.000 INCHES NOMINAL IN
Thickness0.625 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3040-00-394-6974K66 INTERCHANGEABLE
Spider,differential
The Dewey Electronics Corporation Div Pitometer Log Division
5310-00-616-75876167587 INTERCHANGEABLE
Washer,flat
U S Army Tank Automotive Command Amsta-Im-Mm
Cross-Reference Index
Part NumberManufacturer
K66 PRIMARY Rbx Industries (USA)
Related Parts
3040-00-394-6974INTERCHANGEABLE
SPIDER,DIFFERENTIAL
K66
5310-00-616-7587INTERCHANGEABLE
WASHER,FLAT
6167587

Frequently Asked Questions

What is NSN 5970-01-321-7741?

NSN 5970-01-321-7741 is a Insulation Sheet,electrical, manufactured by Rbx Industries, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-321-7741?

NSN 5970-01-321-7741 has 1 cross-referenced part number: K66 (Rbx Industries).

What NSN replaces 5970-01-321-7741?

There are 2 known substitutes for 5970-01-321-7741: 3040-00-394-6974, 5310-00-616-7587. Verify interchangeability with system specifications before substitution.

What are the specifications of K66?

Key specifications for K66: Length: 48.000 INCHES NOMINAL IN; Width: 36.000 INCHES NOMINAL IN; Thickness: 0.625 INCHES NOMINAL IN. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com