Electrical conductor

An electrical connector comprising:

• a coupling including a coupling body having a shoulder with an electrically insulative insert therein;
• a plug each including a plug body and an electrically insulative insert therein;
• male convertor pins provided in the electrically insulative insert for one of said coupling body and said plug body and female connector pins provided in the other insert;
• complementary ribs and grooves on said coupling and plug body to permit relatively axial displacement when angularly positioned;
• a threaded coupling nut rotatably mounted on said shoulder of the coupling nut for threadedly engaging complementary threads on the coupling body;
• locking means between said coupling nut and said plug for limiting threaded advancement of the coupling nut along threads of the coupling body and preventing unexpectedly unthreading thereof, said locking means including a ring having at least one dog forming a catch orientated and complementary to a circular alignment of catches, said ring being axially movable on said plug body;
• and
• elastic means including two elastic members at opposite sides of said ring, one elastic member urging said dog away from engagement with said catches before the coupling and plug are connected, said elastic members and said ring being disposed in the path of travel of the coupling body when connecting the coupling and plug, the other elastic member elastically pushing the dog between said catches.