The 203W301-25-0 is a heat-shrinkable boot designed to provide environmental sealing and strain relief. It is constructed from a fluid-resistant elastomer material, as specified by the -25 material dash number, which conforms to RT-1325 and RK-6713 standards. As supplied, the uncoated part has minimum entry diameters of 10.0 mm, which shrink to a maximum of 5.8 mm and 2.2 mm upon recovery. With a nominal length of 29 mm, this component is supplied without an adhesive coating. It is suitable for applications requiring robust protection against fluids and mechanical stress, such as in automotive or aerospace harnesses.