Connector BNC, RF Coaxial connector 1, Contact: Phosphor bronze (C5191, Teflon) 2, ... Shell : Brass 3, RoHS 4. R&D for you High quality RF Coaxial Connector Series Connector ... BNC RF Coaxial connectorMaterial HousingPP/POM/TeflonColor:WhiteContactPhospor Bronze/TeflonShellSUS ...