Telegärtner 50 Ohm N Series RF Coaxial Crimp Plug Connectors 50 Ohm N Series weatherproof RF coaxial crimp plug connectors with a screw coupling, crimp termination, nickel plated body and silver plated centre contact. These 50 Ohm N Series RF coax crimp cable plugs have a mating face sealing between the plug and jack according to IP68 and are available for use with a variety of RF coaxial cable types including RG58, RG213, RG214 and RG223.