Electrical connector for missile launch rail

An electrical connector for testing of a missile launch rail is provided. A stationary housing is combined with a coupling ring to form an outer housing. An internal plunger is housed in the outer housing and spans the length of the outer housing. The stationary housing anchors to the missile launch rail, while the coupling ring is free to rotate about the internal plunger. The coupling ring is rotated via a hand grasp. The coupling ring rotation translates into forward and aft movement of the pin assembly. The connector provides forward and backward stops for limiting pin insertion and extraction moves to desired distances. Rotation via triple-start threads readily overcomes insertion and extraction resistance of a bulky multi-pin assembly and provides a smooth and controlled electrical connection. The size of the connector approaches that of a small conventional military standard 38999 series III connector.