The 413760-3: The 75 Ohm impedance and 2 GHz frequency ceiling place it in video surveillance, baseband video, and digital data distribution, not 50 Ohm RF test or telecom. The kit ships as three pieces: the connector body, a crimp contact, and a ferrule, so you don't have to source those separately.
At 75 Ohm, this jack matches the characteristic impedance of Belden 8218 coax. The 2 GHz maximum frequency and 0.15 dB insertion loss keep signal loss low through multiple connectors.
The 413760-3 is listed for Belden 8218 cable — a 75 Ohm precision video coax. The nickel-plated zinc body and polyethylene dielectric are standard for indoor-rated BNCs; the silver housing colour is the factory finish, not a plating option.