1704-2 is a straight, rear mounted, female, SHV bulkhead jack with a frequency of 300MHz. Nominal impedance is non-constant and voltage rating is 3500Vrms / 5000VDC. Insulator is made of teflon; lock washer is phospor bronze; gasket is silicone rubber; all other metal parts are brass. Center contact is in gold plating finish; and all other metal parts are in Kings tarnish resistant finish. This product has quick connect & disconnect bayonet coupling design. Outer contact ground connection is maintained through the center contact mating cycle. Recessed center contacts prevent shock hazards while unmated.