Product Info Catalog Adhesives Tape Electrical Heat Shrink Tubing, 1/2-1/4 x 4-In., White, Must Purchase in Quantities of 5 Heat Shrink Tubing, 1/2-1/4 x 4-In., White, Must Purchase in Quantities of 5 Request a Quote UPC: 32076077808 Manufacturer: Gardner Bender Inc SKU: 161624 Model Number: HST-500W Heat Shrink Tubing, 1/2" - 1/4" 4" L Resists common fluids and solvents. Meets UL 224, 125 C; CSA C22.2 No. 198.1, 125 C; MIL-DTL-23053/5, Class 1 & 2, AMS 3636 & 3637; DEF STAN 59-79, Issue 3 Type 2a. Continuous operating temperature: -55 C (-67 F) - 135 C (275 F). Shrink temperature: 120 C (250 F) - 250 C (480 F). 600 V/Mil Dielectric strength. 2:1 shrink ratio.