The 1057159-1 is a RF / Coaxial Connector, N Type, Straight Bulkhead Jack, Solder, 50 ohm, RG402, Beryllium Copper Connector Style N Type Connector Type Jack, Female Socket Contact Termination Solder Shield Termination Solder Impedance 50 Ohm Mounting Type Panel Mount Mounting Feature Bulkhead - Front Side Nut Cable Group RG-402 (.141" Semi Rigid) Fastening Type Threaded Frequency - Max 11GHz Number of Ports 1 Housing Color Silver Includes 8 pcs - 1 Connector, 1 Clamp, 1 Contact, 2 Gaskets, 1 Insulator, 1 Lockwasher, 1 Nut Body Material Stainless Steel Center Contact Plating Gold Dielectric Material Polytetrafluoroethylene (PTFE) Operating Temperature -65°C ~ 105°C Center Contact Material Beryllium Copper Voltage Rating 600V Mating Cycles 500