142-0721-841 is a precision RF connector assembly featuring a 50-ohm impedance design optimized for high-frequency signal transmission. The connector incorporates a beryllium copper contact with gold plating over nickel and copper layers, combined with a brass body and Teflon insulator for reliable performance. Key specifications include a frequency range of 0–18 GHz, working voltage of 335 VRMS maximum at sea level, dielectric withstanding voltage of 1000 VRMS minimum, and insulation resistance of 5000 megohm minimum. The connector utilizes a 1/4-36 UNS-2A thread interface and accommodates a maximum panel thickness of 0.125 inches. This connector is ideal for RF/microwave applications requiring stable impedance matching, low VSWR performance, and high-voltage isolation in aerospace, telecommunications, and test equipment environments.