TNC Bulkhead Jack for RG-58C and 141A — 50 Ohm, 11 GHz
The TE Connectivity 1-1478021-0 is a Greenpar-series TNC jack (female socket) in a bulkhead-mount configuration with front-side nut retention. It is a 50 Ohm impedance connector rated to 11 GHz maximum frequency, with a specified insertion loss of 0.2 dB. The body is machined brass with a silver finish, and the center contact is also brass with silver plating — a combination that gives good conductivity and corrosion resistance for outdoor or industrial RF paths. This connector is designed for RG-58C and 141A coaxial cables, with a clamp-style shield termination and solder contact termination. The kit includes all nine pieces needed for a complete field-installable assembly: the connector body, clamp, contact, two gaskets, lockwasher, nut, sleeve, and washer. The threaded fastening type provides a vibration-resistant mate consistent with TNC standards.
The 1-1478021-0 is officially listed as Obsolete. There is no direct replacement order code on record from TE Connectivity.
Cable Fit and Installation
The connector accepts RG-58C and 141A cables — both 50 Ohm coax types commonly used in short-run RF interconnects, patch cables, and test leads. The clamp termination grips the cable braid, while the center conductor is soldered to the contact. The included gaskets and lockwasher seal the bulkhead interface against moisture ingress when properly torqued.