242175 is an SMA jack to SMA plus adapter connector designed for RF/microwave applications. The adapter features a brass body with a TEFCON (polytetrafluoroethylene) insulator and a 1/4-36UNS-2A threaded connection interface. Key dimensional specifications include a body diameter of 6.4 mm (.252 in), an outer diameter of 7.8 mm (.307 in), a length of 23.03 mm (.907 in), and a thread length of 10 mm (.394 in). This adapter is commonly used in RF test equipment, instrumentation, and communication systems where reliable impedance-matched connections between SMA connectors are required.