The KC-59-418 is an angle BNC plug connector designed for use with RG-180 coaxial cable in RF and signal transmission applications. It features a nominal impedance of 50 O and operates across a frequency range from DC to microwave frequencies, with a working voltage rating of 50 V. The connector is constructed with Teflon insulators, silicone rubber gasket, and spring washer components, with gold-plated center contact and nickel-plated outer contact and metal parts for corrosion resistance and reliable electrical performance. This connector is commonly used in test equipment, communications systems, and laboratory instrumentation where reliable RF connections and impedance matching are critical.