HellermannTyton High Shrink Ratio Heavy Duty Heat Shrinkable Tubing, HA67

A range of HellermannTyton High-Shrink-Ratio Heavy-Duty Heat Shrinkable Tubing from the HA67 Range. This 6:1 Ratio heat shrink has been designed to pass over large size connectors and shrink down onto much smaller cable jackets. The thermoplastic adhesive lined tubing provides environmental sealing, excellent insulation and resistance to impact and abrasion. The 6:1 shrink-ratio conforms well to highly variable substrate dimensions and simplifies cable repair.

The heat shrink insulates, seals and protects large size differences between connectors and cables.

  • Material: Polyolefin, cross-linked (POX)
  • Shrink Ratio: 6:1
  • Longitudinal change after shrinkage: -10% max
  • Minimum shrink temperature: +120°C
  • Operating temperature: -55°C to +110°C
  • Softening point adhesive: +85 °C
  • Dielectric Strength: 20kV/mm according to ASTM D2671
  • Supplied in Black
  • Supplied in lengths of 1.2m
Description Image Product Buy Pricing (Ex VAT) Shrunk Diameter Supplied length Unshrunk Diameter Shrinkage Ratio Type Length Colour Maximum Temperature Min. temperature
HellermannTyton 321-30000 6:1 Piece Heat Shrink Tubing Black 3.2mm (1.2 metre)
HellermannTyton 321-30000 6:1 Piece Heat Shrink Tubing Black 3.2mm (1.2 metre)
Extended range
Order code: 49-6998
MPN: 321-30000

Back order - 35 availableBack-order availability date - 09/07/2026
1+ £17.50
Price per unit Ex VAT
3.2mm STRONG 1.2m/STRONG 19mm 6:1 Heat Shrink Tubing 1.2m Black +110°C -55°C
HellermannTyton 321-30100 6:1 Piece Heat Shrink Tubing Black 5.5mm (1.2 metre)
HellermannTyton 321-30100 6:1 Piece Heat Shrink Tubing Black 5.5mm (1.2 metre)
Extended range
Order code: 49-6999
MPN: 321-30100

Back order - 14 availableBack-order availability date - 09/07/2026
1+ £21.88
Price per unit Ex VAT
5.5mm 33mm 6:1 Heat Shrink Tubing 1.2m Black +110°C -55°C
HellermannTyton 321-30200 6:1 Piece Heat Shrink Tubing Black 7.4mm (1.2 metre)
HellermannTyton 321-30200 6:1 Piece Heat Shrink Tubing Black 7.4mm (1.2 metre)
Extended range
Order code: 49-7000
MPN: 321-30200

Available to back orderBack order, lead time 3 weeks
1+ £26.14
Price per unit Ex VAT
7.4mm 44.4mm 6:1 Heat Shrink Tubing 1.2m Black +110°C -55°C
Mftrs. Part no.TypeSupplied ØRecov. ØWall (WT)LengthOrder code
321-30000 HA67-19.0/3.2 19mm3.2mm3.2mm1.2m49-6998
321-30100 HA67-33.0/5.5 33mm5.5mm3.4mm1.2m49-6999
321-30200 HA67-44.4/7.4 44.4mm7.4mm3.6mm1.2m49-7000


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