The 242124 is a TNC female to SMA male adapter manufactured by Amphenol RF, designed to connect TNC female connectors to SMA male connectors for RF and microwave applications. The adapter features a brass body with nickel finish, a Teflon insulator, and phosphor bronze contact pins with gold plating to ensure reliable electrical performance and corrosion resistance. Key dimensional specifications include a body length of 25.07 mm (0.988 inches), a hex width of 8 mm, and internal threading of 7/16-28 UNEF-2A with external threading of 1/4-36 UNS-2B. This adapter is commonly used in RF test equipment, communication systems, and antenna installations where impedance matching and secure connector transitions are required.