Male pin connector

A male connector (170), adapted to engage a female connector to form an electrical connection, has an electrically insulative body (280), an electrically conductive pin (284) secured to the body and extending through a face (294) of the body for electrical contact with the female connector, a cylindrical pin insulator (296) formed in place about the pin and extending through the face of the body, and a wire seal (292) formed in place about the wire jacket and arranged to seal between the wire and the body. In some embodiments, the pin insulator is disposed between two flanges (288,298) of the pin. The described version has nine wires, pins and corresponding pin insulators. The body preferably defines a circumferential groove (281) for retaining an o-ring seal, and is capable of withstanding a static differential pressure of 15,000 pounds per square inch across the o-ring seal without sustaining structural damage. The male connector is preferably constructed to pass through a circular opening of 1.00 inch diameter. Preferred materials are also disclosed.