PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FLEXITE STANDARDInsulation Sleeving,electrical

Markel Corp. · NSN 5970-00-543-1105 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-543-1105 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-543-1105. Primary manufacturer part number: FLEXITE STANDARD.
Features
  • Insulation Sleeving,electrical — FSC 5970
  • Temp Rating: -30.0 CELSIUS AND 75.0 CELSIUS DEGC
  • Color: NATURAL
  • Flexibility: FLEXIBLE
  • Minimum Tensile Strength: 1800 POUNDS PER SQUARE INCH LBS
  • Environmental Protection: FLAME RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT
  • Style Designator: NONSHRINKABLE
  • Dielectric Material Voltage Rating Per Unit Thickness: 800.0 VOLTS PER MIL /0.001 INCH/ IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Insulation Sleeving,electrical, cataloged under National Stock Number 5970-00-543-1105, 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 Markel Corp.. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 20 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5970-00-543-1105
Primary Part NumberFLEXITE STANDARD
Item NameInsulation Sleeving,electrical
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerMarkel Corp.
StatusCANCELLED
Temp Rating-30.0 CELSIUS AND 75.0 CELSIUS DEGC
ColorNATURAL
FlexibilityFLEXIBLE
Minimum Tensile Strength1800 POUNDS PER SQUARE INCH LBS
Environmental ProtectionFLAME RESISTANT AND MILDEW RESISTANT AND OIL RESISTANT
Style DesignatorNONSHRINKABLE
Dielectric Material Voltage Rating Per Unit Thickness800.0 VOLTS PER MIL /0.001 INCH/ IN
Departure From Cited DesignatorAS MOD BY COLOR
Nondefinitive Spec/std Data1 CATEGORY AND I CLASS AND U FORM AND A GRADE AND 18AWG SIZE AND UA SUBFORM AND F TYPE
Reliability IndicatorNOT ESTABLISHED
Wall Thickness0.013 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
Inside Diameter0.040 INCHES MINIMUM AND 0.049 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5330-00-360-7704 INTERCHANGEABLE
Seal,plain Encased
5935-00-458-9374 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
FLEXITE STANDARD Markel Corp. (USA)
118A1641P3 Lockheed Martin Corporation Dba Lockheed Martin Aerostructures (USA)
GLITEX 120 Nalge Co Div of Sybron Corp (USA)
ITCO 919 Insultab Inc Div Pexco Athol (USA)
HYFLEX TRANSFLEX 3m Co Admininistrative Electronic & Communications (USA)
NATVAR 261 High Voltage Engineering Corp Natvar Co Div (USA)
HYFLEX TRANSFLEX Minnesota Mining and Mfg Co 3m Company (USA)
69979-5 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
GMS5-13-05-8 Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (USA)
3002 Minnesota Mining and Mfg Co 3m Company (USA)
ASTRA 701 Essex Group Inc Suflex/iwp Div (USA)
7472368-103 Lockheed Martin Corporation Div Rms (USA)
795657-05 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
8169667 Us Army Aviation and Missile Command (USA)
SYNTHOLVAR Varflex Corporation Dba Varflex Corp (USA)
GMS5-13-05-08 Lockheed Martin Corporation Dba Lockheed Martin Div Rotary and Mission Systems (USA)
T-F,F-U,S-UA,G-A,CL-I&II,CAT-1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
2686572-02 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
MIL-I-631 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3002 3m Co Admininistrative Electronic & Communications (USA)
Related Parts
5330-00-360-7704INTERCHANGEABLE
SEAL,PLAIN ENCASED
5935-00-458-9374INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 5970-00-543-1105?

NSN 5970-00-543-1105 is a Insulation Sleeving,electrical, manufactured by Markel Corp., classified under FSC 5970 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5970-00-543-1105?

NSN 5970-00-543-1105 has 20 cross-referenced part numbers: FLEXITE STANDARD (Markel Corp.), 118A1641P3 (Lockheed Martin Corporation Dba Lockheed Martin Aerostructures), GLITEX 120 (Nalge Co Div of Sybron Corp), ITCO 919 (Insultab Inc Div Pexco Athol), HYFLEX TRANSFLEX (3m Co Admininistrative Electronic & Communications) and 15 more.

What NSN replaces 5970-00-543-1105?

There are 2 known substitutes for 5970-00-543-1105: 5330-00-360-7704, 5935-00-458-9374. Verify interchangeability with system specifications before substitution.

What are the specifications of FLEXITE STANDARD?

Key specifications for FLEXITE STANDARD: Temp Rating: -30.0 CELSIUS AND 75.0 CELSIUS DEGC; Color: NATURAL; Flexibility: FLEXIBLE; Minimum Tensile Strength: 1800 POUNDS PER SQUARE INCH LBS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5970-00-543-1105 still in active supply?

NSN 5970-00-543-1105 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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