The disclosure relates to a microminiature multi-pin connector wherein plural high voltage terminals are closely spaced, yet electrically isolated. This is accomplished by use of a triple O-ring formed integral member into which a mating member is forced which has a diameter larger than the O-ring and smaller than the valleys between the O-rings in order to essentially flatten the O-rings and remove substantially all entrapped air. The fit with the triple O-ring avoids the use of pressure closing devices and therefore minimizes space requirements.
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