between the ferrules 30 32 and the housing 10 as such a seal is formed by the ferrules 30 32 between the housing 10 and the cable 5 the swaging load and contact stress and thus the seal is maintained by the threaded outer diameter 37 of the primary retainer 35 it should be noted that the above description of the primary retainer 35 is exemplary of one particular embodiment of the retainer 35 and is not intended to limit the scope of the invention there are any number of embodiments of the primary retainer 35 that can be used to advantage in the sealing assembly 1 the primary retainer 35 is any means capable of energizing the ferrules 30 32 and maintaining the primary seal in some instances to ensure a proper seal it may be necessary to coat the ferrules 30 32 with a soft metal such as gold typical cable 5 are characterized by non circularity or non uniformity of surface although the process of swaging the ferrules 30 32 on the cable 5 deforms the surface considerably often it is not enough to provide sufficient local contact stresses between the ferrules 30 32 and the troughs existing in the surface of the cable 5 thus the metal metal seal cannot withstand a substantial pressure differential for a long duration of time coating the ferrules 30 32 with a soft metal causes the troughs to be filled with the soft metal substantially increasing the local contact stresses the secondary metal metal seal is formed by a seal element 40 having a conical section 41 that corresponds with a mating section.