Sealing member

A sealing member of resilient, rubber-like material comprising a hollow body part open at one end for receiving an electrical component, at its opposite end, the hollow body part has a wall which is formed inwardly towards the interior of the body part to define on its outer surface at least one first recess which is generally cylindrical and which has a pair of diametrically opposed grooves extending substantially the length thereof, said first recess communicates with a relatively smaller generally cylindrical second recess coaxial with the first recess, the transition between the first and second recesses defining a shoulder, a base of the second recess being frangible to permit the passage of a flat tab contact terminating the end of a cylindrical conductor, through the wall, the conductor having a smaller outer periphery than that of the flat tab contact, the tearing of the base being limited to the material of the second recess which embraces sealingly the cylindrical conductor extending rearwardly from the flat tab contact through the wall.