26/07/2026

Heat Shrink Tubing, 2:1 Shrink Ratio, 1/4", 6.4/3.2 Dia, PO-X, Black, 984 ft/reel


Part No. 305-06400

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  • Thin wall, flexible 2 to 1 shrink ratio material accommodates a wide range of component shapes and diameters.
  • UL-224 and CSA approved, making it ideal for high heat applications.
  • Polyolefin material provides excellent insulation, mechanical strength and resistance against chemicals and solvents.


Behavior At Low Temperature not cracking
Behaviour at low Temperature test method IEC 60684-2
Color Black (BK)
Description The HTF-A series heat shrink tubing features a thin wall, flexible polyolefin construction with a 2:1 shrink ratio, allowing it to conform easily to a wide range of component shapes and diameters. This tubing is UL-224 and CSA approved, making it well-suited for high-heat and demanding electrical applications. The durable polyolefin material provides excellent electrical insulation, strong mechanical protection, and reliable resistance to chemicals and solvents.
Global Part Number HFT-A-6.4/3.2-PO-X-BK
Heat Shock Elongation 390%
Heat Shock Tensile Strength 13MPa
Heat Shock Test 4h/200°C
Heat shock test test method IEC 60684-2
Part No. 305-06400
Short Description Heat Shrink Tubing, 2:1 Shrink Ratio, 1/4", 6.4/3.2 Dia, PO-X, Black, 984 ft/reel
Type HFT-A-6.4/3.2
For Object Outside Diameter 3.84-5.76 mm
Length (metric) 300.0m
Longitudinal Change After Shrinkage -5% max.
Printable No
Recovered Diameter (imperial) 0.126"
Recovered Diameter (metric) 3.2mm
Reel Length (imperial) 984.0ft
Shrink Ratio 2:1
Size (imperial) 1/4"
Supplied Diameter (imperial) 0.25"
Supplied Diameter (metric) 6.4mm
Tensile Strength 14MPa
Volume Resistance 10¹⁴ Ω cm
Wall Thickness (imperial) 0.024"
Wall Thickness (metric) 0.60mm
CSA Certified Yes
Dielectric Strength 21kV/mm
Dielectric Strength test method IEC 60684-2
Elongation at break (min.) 400%
Elongation at break test method IEC 60684-2
Flammability UL 224 VW-1
Halogen Free No
Material PO-X
Material Polyolefin, cross-linked (PO-X)
Min. Shrink Temperature +275 °F (+135 °C)
Operating Temperature -67°F to +275°F (-55°C to +135°C)
REACH Conformity Yes
ROHS Compliant Yes
Self Extinguishing Yes
Test Method Tensile Strength IEC 60684-2
UL File Number [Logo] E143529 [RU]
UL Listed (US and Canada) No
UL Recognized (US) Yes
Volume Resistance test method IEC 60684-2
Carton Qty. 300m
Customs Number 3926909988
Packaging 1 - Weight (kg) 3.201kg
Packaging Type meter
Pkg. Qty. 984ft
Pkg. Qty. 300m
Reel Length (metric) 300.0m
UPC 089306428688

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