122246 is a TNC panel crimp jack connector manufactured by Amphenol RF, designed for use with RG-174/U, 188A/U, and 316/U coaxial cables. The connector features a 7/16–28UNEF–2A thread specification and includes a brass body with nickel finish, a beryllium copper contact pin with gold plating, and a PTFE insulator. The ferrule is constructed from copper with nickel plating, and the sleeve is made of brass with nickel finish, ensuring reliable electrical performance and durability. This connector is commonly used in RF and microwave applications where secure panel mounting and crimp termination are required, providing excellent shielding and signal integrity for demanding communication and test equipment.