The 5227079-5 is a RF / Coaxial Connector, BNC Coaxial, Straight Plug, Crimp, 50 ohm. Connector Style BNC Connector Type Plug, Male Pin Contact Termination Crimp Shield Termination Crimp Impedance 50 Ohm Mounting Type Free Hanging (In-Line) Cable Group RG-58, 58A, 58B, 58C, 141 Fastening Type Bayonet Lock Frequency - Max 4GHz Number of Ports 1 Housing Color Silver Includes 3 pcs - 1 Connector, 1 Contact, 1 Ferrule Body Material Brass Body Finish Nickel Center Contact Plating Gold Dielectric Material Polyethylene (PE) Operating Temperature -55°C ~ 85°C