The 112563 is a RF Connector, BNC series, BNC Straight Crimp Plug with gold-plated phosphor bronze contacts. Body made up of brass with nickel-plated finish and PTFE 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 50ohm BNC connector is miniature, lightweight units useable up to 11GHz and typically yield low reflection through 4GHz. Designed to accommodate a large variety of RG and industry standard cables. This RF connector is designed for Belden 9913, Belden 9914 and LMR-400 cable.