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M23053/4 Class 1 semi-rigid, non-flame retardant tubing is designed to encapsulate cables and components. The polyolefin material shrinks upon the application of heat to form moisture and corrosion protection. M23053/4 Class 1 has a longitudinal change that ranges from +1% to -10%.


  • Class 1: Semi-rigid, non-flame retardant
  • 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, -10%


  • Encapsulation of cables, splices and components
  • Connector strain relief
  • Moisture and corrosion protection
Size (in): 1
Recovered I.D. Max. (in): 0.400
Recovered Total Wall Thk. Nom. (in): 0.100
Inner Meltable Wall Thk. Nom. (in): 0.065
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