Provides basic mating and performance information for subminiature coaxial connectors with overlapping polytetrafluoroethylene (PTFE) dielectric interface for use with flexible and semi-rigid r.f. cables. The connectors are usable up to a frequency of 3 GHz. Only the interface dimensions are standardized. Other technical data are supplied for guidance only. The contents of the corrigendum of July 1995 have been included in this copy.