PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-I-24703Insulation Sleeving,thermal

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5640-01-307-4724 · FSC 5640 · No Item Name Available
Verified by PartsTable
NSN 5640-01-307-4724 — this item is cataloged by the U.S. Government under National Stock Number 5640-01-307-4724. Primary manufacturer part number: MIL-I-24703.
Features
  • Insulation Sleeving,thermal — FSC 5640
  • Fabrication Method: EXPANDED
  • Insulation Thickness: 0.500 INCHES NOMINAL IN
  • Material: POLYPHOSPHAZENE FOAM LOCATION NOT OTHERWISE SPECIFIED
  • Nondefinitive Spec/std Data: T FORM
  • Length: 72.000 INCHES NOMINAL IN
  • Inside Diameter: 1.375 INCHES NOMINAL IN
  • Flexibility: FLEXIBLE
Applications
  • Applications requiring Polyphosphazene Foam Location Not Otherwise Specified construction
General Description

The Insulation Sleeving,thermal, cataloged under National Stock Number 5640-01-307-4724, is classified within Federal Supply Class 5640 (No Item Name Available) of the Construction and Building Materials 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 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5640-01-307-4724
Primary Part NumberMIL-I-24703
Item NameInsulation Sleeving,thermal
FSC / FSG5640 / 56 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Fabrication MethodEXPANDED
Insulation Thickness0.500 INCHES NOMINAL IN
MaterialPOLYPHOSPHAZENE FOAM LOCATION NOT OTHERWISE SPECIFIED
Nondefinitive Spec/std DataT FORM
Length72.000 INCHES NOMINAL IN
Inside Diameter1.375 INCHES NOMINAL IN
FlexibilityFLEXIBLE
Layer Quantity1
Design FormFULL ROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-074-47356150 INTERCHANGEABLE
Terminal,stud
Lerco Div Space-Lok Inc
7340-00-098-432722-01463 INTERCHANGEABLE
Knife,hunting
Fiskars Brands, Inc. Dba Fiskars Brands Inc
3110-00-142-438609195 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
6105-00-859-2837 INTERCHANGEABLE
Motor,alternating Current
6240-01-006-5782229 INTERCHANGEABLE
Lamp,incandescent
Electro Switch Corp. Dba Oak Grisgsby Div Electroswitch
5940-01-037-16196-150 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
6105-01-142-37636150 INTERCHANGEABLE
Motor,direct Current
Hose-Mccann Telephone Co, Inc
4410-01-145-6725 INTERCHANGEABLE
Barrel,burner Atomizer
5640-01-304-4030 INTERCHANGEABLE
Insulation Sleeving,thermal
5640-01-304-4031 INTERCHANGEABLE
Insulation Sleeving,thermal
Cross-Reference Index
Part NumberManufacturer
MIL-I-24703 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
6150 Ethyl Corp Commercial Development Div (USA)
MIL-I-24703 FMT General Services Administration Federal Supply Service (USA)
Related Parts
5940-00-074-4735INTERCHANGEABLE
TERMINAL,STUD
6150
7340-00-098-4327INTERCHANGEABLE
KNIFE,HUNTING
22-01463
3110-00-142-4386INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
09195
6105-00-859-2837INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
6240-01-006-5782INTERCHANGEABLE
LAMP,INCANDESCENT
229
5940-01-037-1619INTERCHANGEABLE
TERMINAL BOARD
6-150
6105-01-142-3763INTERCHANGEABLE
MOTOR,DIRECT CURRENT
6150
4410-01-145-6725INTERCHANGEABLE
BARREL,BURNER ATOMIZER
5640-01-304-4030INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
5640-01-304-4031INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
5640-01-304-4032INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
5640-01-304-4033INTERCHANGEABLE
INSULATION SLEEVING,THERMAL

Frequently Asked Questions

What is NSN 5640-01-307-4724?

NSN 5640-01-307-4724 is a Insulation Sleeving,thermal, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5640 (No Item Name Available). Status: active.

What are the part numbers for NSN 5640-01-307-4724?

NSN 5640-01-307-4724 has 3 cross-referenced part numbers: MIL-I-24703 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 6150 (Ethyl Corp Commercial Development Div), MIL-I-24703 FMT (General Services Administration Federal Supply Service).

What NSN replaces 5640-01-307-4724?

There are 12 known substitutes for 5640-01-307-4724: 5940-00-074-4735, 7340-00-098-4327, 3110-00-142-4386 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-I-24703?

Key specifications for MIL-I-24703: Fabrication Method: EXPANDED; Insulation Thickness: 0.500 INCHES NOMINAL IN; Material: POLYPHOSPHAZENE FOAM LOCATION NOT OTHERWISE SPECIFIED; Nondefinitive Spec/std Data: T FORM. 10 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