3M Heavy-Duty Heat Shrink Tubing, MD1.300BK48, is a medium wall tubing designed for various applications. It has an overall length of 48 inches (1.22 m) and can withstand temperatures ranging from -55 °C to +105 °C (-67 °F to 230 °F). With a shrink ratio of 3:1, it provides a tight and secure fit over objects. This flame retardant tubing is made of polyolefin material and comes in black color. It is self-extinguishing and has a tensile strength of 2400 Pound-Force per square inch. The tubing is adhesive lined and has a voltage rating of 1 kV, making it suitable for cable sizes ranging from 1-4/0 AWG. It meets the SAE-AMS-DTL-23053/15, Class 2 application specifications and is chemical resistant. - 7000005984