Abstract: A snap lock connector particularly well suited to optical fiber systems, is composed generally of a receptacle body having a socket and a plug body having a number of collet fingers. A first fiber optic cable is connected to a first ceramic terminus having a first face inside the socket. A second fiber optic cable is connected to a second ceramic terminus having a second face inside the collet fingers. The first ceramic terminus is fixedly connected to the receptacle body in axial alignment therewith; and the second ceramic terminus is resiliently biased with respect to the plug body in axial alignment therewith. The exterior of the receptacle body has a circumscribed groove for engaging the tips of the collet fingers. The plug body has a locking sleeve slidably mounted thereon for being selectively slid over the collet fingers.