British Naval Connector or Bayonet Nut Connector or Bayonet Neill Concelman

A type of connector used with coaxial cables such as the RG-58 A/U cable used with the 10BASE2 Ethernet system. The basic BNC connector is a male type mounted at each end of a cable. This connector has a center pin connected to the center cable conductor and a metal tube connected to the outer cable shield. A rotating ring outside the tube locks the cable to any female connector.