The 031-5998-RFX is a BNC straight crimp plug connector designed for miniature to subminiature coaxial cable termination in RF applications. It features a nickel-plated brass body with gold-plated beryllium copper contacts, utilizing a crimp termination method for both the center conductor and cable braid. This commercial-grade connector is rated for 50 O impedance with performance specifications including a frequency range of DC to 4 GHz, a maximum VSWR of 1.16 at DC to 3 GHz, and a minimum shielding effectiveness of 55 dB at 3 GHz. The connector employs a 2-stud bayonet lock coupling mechanism (MIL-STD-348) for quick quarter-turn mating and is suitable for applications requiring reliable RF signal transmission in test equipment, instrumentation, and communication systems.