Catalog > Electro-Mechanical Components > Fasteners Hardware > Electronic Hardware > Heatsink Insulators and Bushes TO-220 Silicone Rubber Heatsink Insulator Silicone Rubber Heatsink Insulator • for TO220 Part No: TO-220 0.90 ZAR inc for 1 Each (Quoting) Add to Cart Specifications, Prices & Availability may change without notice. Images are for illustration purposes only. E&OE Features for TO220