Abstract: A backshell assembly and method of making and assembling a connection between electrical cable and another electrical device are disclosed. The backshell assembly includes a hollow cylindrical body having a first end for attachment to the other electrical device. A hollow cylindrical nut is provided for attachment to the other end of the backshell body and for entrance of the cable. A hollow cylindrical heat shrinkable tube is provided with its central portion shrunk down and bonded to the nut and with end extensions stress relieved by being heat shrunk and provided with an inside diameter greater than the diameter of the outside surface of the nut.