RP-TNC female connector for use with LMR-400, WBC-400, RG-8/U or Belden 9913 Coax cable. They are used for a wide variety of radio connections to terminate coax at a male RP-TNC jack. These are one of the most common connector for ISM radios sold. Some examples of radios that use the RP-TNC fitting would be Cisco Aironet, Linksys, Proxim and ArLan. The body plating is Nickel, the center pin is Gold and the dielectric is Teflon. Center pin attachment is a crimp type (.118), and outer ring is crimp (.429 crimp tool needed).