Heat Shrink Tubing Fit-221B-3/8-Black 4 Feet Black Polyolefin Tubing

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$1.95 ea

35 In Stock
More will be available on Jan. 27

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  • Jameco Part no.: 419223
  • Manufacturer: Jameco ValuePro
  • Manufacturer no.: HST38BK4
  • HTS code: 8543909500
  • Web Exclusive
# of units Price
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10+ $1.75
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Black Polyolefin Round Heat Shrink Tubing - 4 Feet

Insulation from environment and resistance from water, fungus and UV light. Use for insulation and repair, wire and cable harnessing/bundling, cable and connector protection, and wire and tubing splicing and connecting.


  • Operating temp: -55°C to 135°C
  • Approximate shrink ratio: 2:1 @ 121°C
  • Dielectric strength: 500V/mil (197kV/cm)
  • Volume resistivity: 1014Ω-cm
  • Before/After inner diameter (in.): 0.375/0.187

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Specification Value
Pre-Shrink Diameter0.375 in. (3/8 in.)
Length4 ft.
Shrink Ratio2 to 1

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