221629-2 is a BNC terminator plug designed for RF coaxial applications with a 75 ohm impedance and 1 watt power rating. The connector features a nickel-plated body and gold-plated center contact with a polyethylene dielectric. It includes a tether with a #6 stud size and has a maximum diameter of 14.53 mm (0.572 in) and overall length of 33.02 mm (1.300 in). This terminator plug is commonly used in RF signal termination applications where proper impedance matching is required to prevent signal reflections.