The 122370RP is a TNC reverse polarity bulkhead crimp jack for terminating RG-178B/U and RG-196A/U coaxial cables. This connector features a durable nickel-plated brass body, a gold-plated phosphor bronze contact pin for reliable signal transmission, and a Teflon insulator. It is designed for panel mounting with a maximum panel thickness of 5.0mm and utilizes a 1/2-28UNEF-2A thread. For proper installation, the ferrule requires a .128" hex crimp and the contact pin requires a 0.7mm square crimp. This bulkhead jack is ideal for applications requiring a secure, panel-mounted RF connection.