Abstract: A high voltage, anti-corona connector defines similar interengaging structures of varying sizes which both retain the plug in the socket and provide substantially air-tight, anti-corona seals. The plug is a unitarily formed structure fabricated of a resilient dielectric material which defines an elongate contact receiving barrel having a plurality of spaced apart circumferential ribs of distinct sizes disposed on its outer surface. The socket includes a single contact disposed within a concentric aperture having at least one circumferential recess. One of the ribs of the plug seats within the socket recess and tightly retains the plug therein, the remaining ribs providing substantially air-tight seals to minimize arcing and corona discharge. Intimate seals between the face of the socket and a shoulder region of the plug adjacent the barrel as well as the end of the barrel and the internal end wall of the socket also contribute to the performance of the high voltage plug and socket of the present invention.