A non - commutative Gelfand - Naimark theorem

This invention relates to an electrical connector assembly including apparatus for securing a metallic coupling ring on a connector body or shell. A metallic retaining ring is secured into the rear of the coupling ring bore through the interaction of an annular sawtooth groove pattern formed on the outside of the retaining ring and on the rear inside of the coupling ring bore. The dimensions of the sawtooth groove pattern are carefully selected so as to permit metallic materials to be used for both rings. The connector assembly includes a pair of shells, each having electrical contacts carried by a dielectric retention disc secured in a respective shell for engagement with the electrical contacts of the other shell. Each shell has a large diameter recess for receiving a large diameter portion of each disc force fit through a small diameter portion of the respective shell to thereafter retain the disc. The shell small diameter portion is bounded by a conical camming surface and a conical camming surface is formed adjacent the front end of the disc enlarged diameter portion for enabling force fitting each retention disc through the small diameter portion of the respective shell. Circumferentially spaced ribs on the disc surface also engage the shell wall to prevent disc shifting.