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FIT-621 Heat Shrink Tubing

Part Number Size (in)Recovered I.D. (in)Nom. Rec. Wall Thick. (in)Expanded I.D. (in)Nom. Rec. Adhesive Wall Thick. (in)Shrink Ratio
FIT-621-1-1/4 1 1/4 0.22 0.06 1.25 0.05 6:1
FIT-621-2 2 0.33 0.105 2 0.05 6:1
FIT-621-2-1/2 2 1/2 0.5 0.12 2.5 0.05 6:1
FIT-621-3 3 0.75 0.14 3 0.05 6:1
FIT-621-4 4 0.9 0.155 4 0.05 6:1
FIT-621-5/8 5/8 0.15 0.06 0.6 0.05 6:1
FIT-621 Heat Shrink Tubing
5:6:1 Shrink Ratio, Dual-Wall Flexible PO, Adhesive-Lined Inner Thick Wall

FIT-621 Heat Shrink Tubing Characteristics:

  • Material: Polyolefin (PO)
  • Color: black
  • Operating temperature: -55°C to +90°C
  • Shrink temperature: 121°C full recovery

FIT-621 Heat Shrink Tubing Physical Properties:

  • Tensile strength: 1200 psi (8.27 N/mm2)
  • Elongation: 200% min
  • Longitudinal change: -10%
  • Specific gravity: 1.40
  • Shelf life: 5 years at 18°C to 35°C

FIT-621 Heat Shrink Tubing Chemical Properties:

  • Corrosive effect: none
  • Fungus resistance: no growth
  • Water absorption: 0.5% max
  • Fluid resistance: 750 psi (5.17 N/mm2)
  • Halogen free
  • Lead free

FIT-621 Heat Shrink Tubing Electrical Properties:

  • Dielectric strength: 200 V/mil (79 kV/cm)
  • Volume resistivity: 1013 ohm-cm

FIT-621 Heat Shrink Tubing Features and Benefits:

Alpha Wire's FIT-621 Heat Shrink Tubing features high shrink ratios and heavy-duty adhesive lining. FIT-621 Heat Shrink offers heat shrinkable tubing with low water absorption. Alpha FIT-621 tubing is also chemical, oil, and abrasion resistant.