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M23053/4 Class 2 tubing is both flexible and flame retardant. The polyolefin material is intended for jacketing and bundling of electrical connections and terminations. M23053/4 Class 2 features a longitudinal change that ranges from +1% to -5%.


  • Class 2: Flexible, flame retardant
  • Polyolefin crosslinked outer wall which shrinks and an inner wall which flows upon the application of heat
  • Colors shall conform to the requirements of Class 1 of MIL-STD-104; black shall be considered standard
  • Operating temperature: -55°C to +110°C
  • Longitudinal change: +1, -5%


  • Jacketing and bundling
  • Strain relief of electrical connections and terminations
  • Component encapsulation
Size (in): 0.238
Recovered I.D. Max. (in): 0.125
Recovered Total Wall Thk. Nom. (in): 0.029
Inner Meltable Wall Thk. Nom. (in): 0.004
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