The 081-115BK-1000: It is a threaded, 50 Ohm connector rated to 2.2 GHz — a practical ceiling for two-way radio, antenna feeds, and test equipment where the full-size UHF is too bulky but the signal path stays below 2.5 GHz. The black chromate finish on the brass body gives it corrosion resistance beyond a plain nickel shell, which matters when the connector lives on a panel edge or in an outdoor cabinet.
Cable prep and termination — crimp or solder centre
The centre contact can be crimped or soldered, and the shield terminates with a crimp ferrule. The cable group list covers RG-58 and LMR-195 coax.
The black chromate body finish adds a layer of corrosion protection that plain brass or nickel does not have, so it holds up longer in humid or outdoor environments.