Viton® Heat-Shrinkable Tubing

Extreme Protection for Military & Commercial Aircraft Applications

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What's special about Viton Heat Shrink?

  • High operating temperature (392° F / 200° C) for extreme working conditions.
  • Superior protection from highly corrosive acids, fluids, fuels, & solvents keep wire bundles, harnesses, and components safe in aircraft or other machines.
  • Meets MIL-DTL-23053/13 and AMS-DTL-23053/13B specifications.
  • Protects from abrasion, impacts, & cut-throughs, and flexibility at high and low temperatures, means Viton can be used in almost any aerospace, military, commercial, or industrial application.
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Custom Sizes and Cut Pieces are NON-RETURNABLE and NON-REFUNDABLE

Part #Nominal SizeSize After ShrinkingSpool LengthColorPrice
HSVIT-0125-SP0.125"0.062"200 ft.Black
HSVIT-025-SP0.250"0.125"200 ft.Black
HSVIT-0375-SP0.375"0.187"200 ft.Black
HSVIT-050-SP0.500"0.250"100 ft.Black
HSVIT-0625-SP0.625"0.312"100 ft.Black
HSVIT-075-SP0.750"0.375"100 ft.Black
HSVIT-0875-SP0.875"0.437"100 ft.Black
HSVIT-100-SP1.000"0.500"50 ft.Black
HSVIT-125-SP1.250"0.625"50 ft.Black
HSVIT-150-SP1.500"0.750"50 ft.Black
HSVIT-200-SP2.000"1.000"50 ft.Black

Viton Heat Shrink Technical Specifications
Military Specifications and a manufacturers' cross reference

Viton® is a flexible rubber-like fluoroelastomer heat-shrinkable tubing used for protecting wiring, bundling, harnessing and component covers in military and commercial aircraft. It has a superior resistance to highly corrosive fluids, fuels, lubricants, acids and aggressive solvents at low and elevated temperatures up to 200°C. It also provides protection from abrasion, impacts, cut-throughs. It is very flexible at high and low temperatures.

  • Aerospace, military, and commercial electronic control systems applications
  • Hydraulic fluid transport mechanisms
  • Chemical plants
  • Environmental protection within engine compartments
  • Meets all of the requirements of military specification MIL-DTL-23053/13    AMS-DTL-23053/13B
  • SAE-AS81531, NASA SP-R-0022A


  • Operating temperature -55°C to 200°C (-67°F to 392 °F) and up to 300°C for short time durations
  • Shrink ratio: 2:1
  • Minimum shrink temperature: 175°C (347°F)
  • Indefinite storage life
  • Measurement Conversion Chart


Internal Diameter Min.
Internal Diameter Max.
Min.Total Wall Thickness
1/8" 0.125" [3.2mm] 0.062" [1.6mm] 0.031" [0.80mm]
3/16" 0.187" [4.8mm] 0.093" [2.4mm] 0.035" [0.90mm]
1/4" 0.250" [6.4mm] 0.125" [3.2mm] 0.035" [0.90mm]
3/8" 0.375" [9.6 5mm] 0.187" [4.8mm] 0.035" [0.90mm]
1/2" 0.500" [12.7mm] 0.250" [6.4mm] 0.035" [0.90mm]
5/8" 0.625" [15.9mm] 0.312" [7.9mm] 0.042" [1.10mm]
3/4" 0.750" [19.1mm] 0.375" [9.5mm] 0.042" [1.10mm]
7/8" 0.875" [22.2mm] 0.437" [11.1mm] 0.049" [1.20mm]
1" 1.000" [25.4mm] 0.500" [12.7mm] 0.049" [1.20mm]
1-1/4" 1.250" [31.8mm] 0.625" [15.9mm] 0.055" [1.40mm]
1-1/2" 1.500" [38.1mm] 0.750" [19.1mm] 0.055" [1.40mm]
2" 2.000" [50.8mm] 1.000" [25.4mm] 0.065" [1.70mm]


Specification Values

Physical Elongation   300%
Tensile strength (psi) ASTM D638 1200 min.
Elongation (%) ASTM D638 Min. 250%
Tensile strength@ 200% elongation (psi) ASTM D412 2000 max.
Heat shock (300°C, 4 hrs.) MIL / AMS-DTL-23053 No cracking, no dripping
Cold impact (-40°C, 4 hrs.) ASTM D746 No cracking
Heat resistance
(250°C, 168 hrs.)
ASTM D638 200 min.
Elongation (%) ASTM D638 200 min.
Tensile Strength (psi) ASTM D638 1200 min.
Longitudinal change (%) MIL-DTL-23053 -20 max.
Specific Gravity - 1.9
Electrical Dielectric strength(Volts/mil) ASTM D876 200 vpm min.
Volume resistivity (Ω - cm) ASTM D876 Min. 1x10¹¹Ω - cm
Chemical Min Copper mirror corrosion
(175°C, 16 hrs.)
MIL-DTL-23053 No corrosion
Fungus resistance - Non-nutrient
Water absorption (%) ASTM D570 0.5 max.
Fluid resistance (23°C, 24 hrs)    
Tensile strength (psi) MIL-DTL-23053 1200 min.
Elongation AMS-DTL-23053 250 min.
Flammability AMS-DTL-23053 15 sec. max.

Limiting Oxygen Index (LOI)
The ratio of how much oxygen - as compared to other gases - needs to be present in the air surrounding a particular material in order for that material to burn. The fact that Earth's normal atmospheric air contains around 21% oxygen is used a reference point when materials are classified into burn categories that are based on Limiting Oxygen Index. Substances that are combustible in air containing less than 21% oxygen are considered flammable, while those that burn in the range of anything greater than 21% but less than 28% are typically labeled "slow burning". Any material with an LOI that exceeds 28% is classified as self-extinguishing.

In the table below, you'll find a list of polymers commonly found in our heat shrink tubing and braided sleeving products, along with their LOIs and the burn categories each falls into.

ECTFE (Ethylene chlorotrifluoroethylene) Halar 64% Self Extinguishing
Nomex N/A 28% Slow Burning
Nylon 6:6 N/A Ranges fron 24-29% Slow Burning to Self Extinguishing
PET (Polyethylene Terephthalate) Mylar (film), Dacron (fiber) Ranges from 21-34% Slow Burning to Self Extinguishing
Polyethylene (PE) N/A 17% Flammable
Polypropylene (PP) polythene (in the UK) 17% Flammable
Polytetrafluoroethylene (PTFE) Teflon 95% Self Extinguishing
Polyvinyl Chloride (PVC) N/A Ranges from 45-49% Self Extinguishing


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