PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-I-23053/5Insulation Sleeving,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5970-00-451-0976 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-451-0976 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-451-0976. Primary manufacturer part number: MIL-I-23053/5.
Features
  • Insulation Sleeving,electrical — FSC 5970
  • Expanded Inside Diameter: 0.375 INCHES NOMINAL IN
  • Style Designator: SHRINKABLE
  • Recovered Inside Diameter: 0.187 INCHES NOMINAL IN
  • Color: CLEAR
  • Recovered Wall Thickness: 0.025 INCHES NOMINAL IN
  • Flexibility: FLEXIBLE
  • Environmental Protection: MILDEW RESISTANT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-00-451-0976, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-451-0976
Primary Part NumberMIL-I-23053/5
Item NameInsulation Sleeving,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Expanded Inside Diameter0.375 INCHES NOMINAL IN
Style DesignatorSHRINKABLE
Recovered Inside Diameter0.187 INCHES NOMINAL IN
ColorCLEAR
Recovered Wall Thickness0.025 INCHES NOMINAL IN
FlexibilityFLEXIBLE
Environmental ProtectionMILDEW RESISTANT
Dielectric Withstanding Voltage in Volts500.0
Temp Rating-67.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5920-00-280-3766 INTERCHANGEABLE
Adapter,fuse
5970-00-451-0971 INTERCHANGEABLE
Insulation Sleeving,electrical
5970-00-451-0972 INTERCHANGEABLE
Insulation Sleeving,electrical
5970-00-451-0973 INTERCHANGEABLE
Insulation Sleeving,electrical
5970-00-451-0974 INTERCHANGEABLE
Insulation Sleeving,electrical
5920-00-564-3584 INTERCHANGEABLE
Adapter,fuse
5970-00-767-052410105736-12 INTERCHANGEABLE
Insulation Sleeving,electrical
Us Army Aviation and Missile Command
4720-00-843-2706 INTERCHANGEABLE
Tubing,nonmetallic
4720-01-247-3213FIT-221-3/8 INTERCHANGEABLE
Tubing,nonmetallic
Belden, Inc.
Cross-Reference Index
Part NumberManufacturer
MIL-I-23053/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
CLASS2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FIT-221 3/8 Belden, Inc. (USA)
Related Parts
5920-00-280-3766INTERCHANGEABLE
ADAPTER,FUSE
5970-00-451-0971INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
5970-00-451-0972INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
5970-00-451-0973INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
5970-00-451-0974INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
5920-00-564-3584INTERCHANGEABLE
ADAPTER,FUSE
5970-00-767-0524INTERCHANGEABLE
INSULATION SLEEVING,ELECTRICAL
10105736-12
4720-00-843-2706INTERCHANGEABLE
TUBING,NONMETALLIC
4720-01-247-3213INTERCHANGEABLE
TUBING,NONMETALLIC
FIT-221-3/8

Frequently Asked Questions

What is NSN 5970-00-451-0976?

NSN 5970-00-451-0976 is a Insulation Sleeving,electrical, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-451-0976?

NSN 5970-00-451-0976 has 3 cross-referenced part numbers: MIL-I-23053/5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), CLASS2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FIT-221 3/8 (Belden, Inc.).

What NSN replaces 5970-00-451-0976?

There are 9 known substitutes for 5970-00-451-0976: 5920-00-280-3766, 5970-00-451-0971, 5970-00-451-0972 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-I-23053/5?

Key specifications for MIL-I-23053/5: Expanded Inside Diameter: 0.375 INCHES NOMINAL IN; Style Designator: SHRINKABLE; Recovered Inside Diameter: 0.187 INCHES NOMINAL IN; Color: CLEAR. 10 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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