The KC-19-93 is a bulkhead BNC jack connector manufactured by Winchester/Kings, designed for RF and microwave applications requiring reliable coaxial signal transmission. It operates across a frequency range of DC to 4 GHz with a working voltage of 500 VRMS and maintains a nominal impedance of 50 ohms, conforming to MIL-STD-348 interface specifications. The connector features a 1/2-28 UNEF-2A threaded interface and is compatible with RG-174, RG-179A, RG-179B, RG-187, RG-187A, RG-188, and RG-188A/U cables. Construction includes beryllium copper center contacts with silver plating, Teflon insulators, and phosphor bronze lockwashers with silicone rubber gaskets, all finished with Kings tarnish-resistant nickel (TR-5) for enhanced durability. This connector is ideal for panel-mount applications in test equipment, communications systems, and RF instrumentation where secure, low-loss signal coupling is required.