The 112133 is a RF Connector, BNC series, BNC Straight Crimp Plug with gold-plated brass contacts and bayonet coupling mechanism. Body made up of brass with nickel-plated finish and Delrin insulator. The BNC is a bayonet style connector allowing for quick connect and disconnect with a positive locking mechanism. Mating is achieved with just a quarter turn of the coupling nut. The 75ohm BNC connector to meet the needs for higher performance impedance-matched cable interconnection. This connectors can be used in a variety of applications where true 75ohm performance is needed to low signal distortion. This RF connector is designed for Belden 9221, M17/94-RG179, RG-179, RG-179A, RG-179B, RG-187 and RG-187A cable.