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M23053/4 Class 3 dual-wall polyolefin tubing is flexible, flame retardant, and highly expansive. The longitudinal change features a range of +1% to -15%. M23053/4 Class 3 provides connector strain relief and moisture/corrosion protection for wires and terminals.


  • Class 3: Flexible, flame retardant, high expansion
  • 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, -15%


  • Connector strain relief
  • Moisture and corrosion protection of wires, terminals and connections
Size (in): 0.940
Recovered I.D. Max. (in): 0.320
Recovered Total Wall Thk. Nom. (in): 0.100
Inner Meltable Wall Thk. Nom. (in): 0.040
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