Part # Shrink Ratio  Material  Min Supplied ID  Max Recovered ID  Nom Recovered Wall  Temperature  Ratings 
FIT-400-20 1.2:1  FEP  0.045  0.039  0.008  -75 to 200  AMS DTL-23053/11 Class 1, CA Prop 65, RoHS 
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1) Tubing Type Heat Shrinkable Tubing
2) Tubing Material FEP
3) Minimum Supplied ID(In) 0.045
4) Maximum Recovered ID (In) 0.039
5) Nominal Recovered Wall Thickness(In) 0.008
6) Color(s) NATURAL
1) UL VW-1 
2) Other AMS-DTL-23053/11 Class 1 
1) EU Directive 2011/65/EU(RoHS2):
 All materials used in the manufacture of this part are in compliance with European Directive 2011/65/EU regarding the restriction of use of certain hazardous substances in electrical and electronic equipment.
2) REACH Regulation (EC 1907/2006):
 This product does not contain Substances of Very High Concern (SVHC) listed on the European Union's REACH candidate list in excess of 0.1% mass of the item.
Physical & Mechanical Properties
1) Temperature Range -75 to 200°C 
2) Shrink Ratio Approximately 1.2:1 
3) Full Recovery Temperature 176°C 
4) Tensile Strength 2000psi, Min ASTM D638
5) Elongation 200%, Min ASTM D638
6) Longitudinal Change +/-15% AMS-DTL-23053
7) Specific Gravity 2.17, Max ASTM D792
8) Shelf Life 4 Years @ 18 to 35°C 
Electrical Properties
1) Dielectric Strength 2000 V/mil, Min ASTM D876
2) Volume Resistivity 1x10 17 ohm-cm, Min ASTM D876
Chemical Properties
1) Water Absorption 0.01%, Max ASTM D570
2) Corrosion(0°C,16hrs) no corrosion AMS-DTL-23053
3) Fungus Resistance Pass AMS-DTL-23053
4) Halogen Free No 
5) Lead Free Yes 
25X4 FT

Our FIT heat-shrink tubing offers a reliable way to protect and seal terminations or add additional mechanical ruggedness. FIT preferred heatshrink products are made from premium compounds under the tightest manufacturing controls. This means FIT will consistently have excellent physical characteristics such as low longitudinal shrinkage and wide temperature ranges while providing an elegant appearance when used alone or on OEM equipment.

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