PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FIT-221 3-32BLKInsulation Sleeving,electrical

Belden, Inc. · NSN 5970-01-167-7806 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-01-167-7806 — this item is cataloged by the U.S. Government under National Stock Number 5970-01-167-7806. Primary manufacturer part number: FIT-221 3-32BLK.
Features
  • Insulation Sleeving,electrical — FSC 5970
  • Environmental Protection: CORROSION RESISTANT AND FLAME RESISTANT AND WATER RESISTANT
  • Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS
  • Dielectric Material Voltage Rating Per Unit Thickness: 500.0 VOLTS PER MIL /0.001 INCH/ IN
  • Flexibility: FLEXIBLE
  • Heat Shrinkage Rating in Percent: 50.0
  • Color: BLACK
  • Recovered Wall Thickness: 0.020 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Polyolefin construction
General Description

The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-01-167-7806, 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 Belden, Inc.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-01-167-7806
Primary Part NumberFIT-221 3-32BLK
Item NameInsulation Sleeving,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerBelden, Inc.
StatusACTIVE
Environmental ProtectionCORROSION RESISTANT AND FLAME RESISTANT AND WATER RESISTANT
Minimum Tensile Strength1500 POUNDS PER SQUARE INCH LBS
Dielectric Material Voltage Rating Per Unit Thickness500.0 VOLTS PER MIL /0.001 INCH/ IN
FlexibilityFLEXIBLE
Heat Shrinkage Rating in Percent50.0
ColorBLACK
Recovered Wall Thickness0.020 INCHES NOMINAL IN
Style DesignatorSHRINKABLE
Temp Rating-40.0 CELSIUS AND 125.0 CELSIUS DEGC
Expanded Inside Diameter0.093 INCHES MINIMUM IN
Recovered Inside Diameter0.046 INCHES MAXIMUM IN
MaterialPLASTIC POLYOLEFIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5970-00-812-2974M23053/5-103-0 INTERCHANGEABLE
Insulation Sleeving,electrical
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
FIT-221 3-32BLK PRIMARY Belden, Inc. (USA)
94-0025 Belden, Inc. (USA)
Related Parts
5970-00-812-2974INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
M23053/5-103-0

Frequently Asked Questions

What is NSN 5970-01-167-7806?

NSN 5970-01-167-7806 is a Insulation Sleeving,electrical, manufactured by Belden, Inc., classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-01-167-7806?

NSN 5970-01-167-7806 has 2 cross-referenced part numbers: FIT-221 3-32BLK (Belden, Inc.), 94-0025 (Belden, Inc.).

What NSN replaces 5970-01-167-7806?

There is 1 known substitute for 5970-01-167-7806: 5970-00-812-2974. Verify interchangeability with system specifications before substitution.

What are the specifications of FIT-221 3-32BLK?

Key specifications for FIT-221 3-32BLK: Environmental Protection: CORROSION RESISTANT AND FLAME RESISTANT AND WATER RESISTANT; Minimum Tensile Strength: 1500 POUNDS PER SQUARE INCH LBS; Dielectric Material Voltage Rating Per Unit Thickness: 500.0 VOLTS PER MIL /0.001 INCH/ IN; Flexibility: FLEXIBLE. 12 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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