The TE Connectivity 228979-7 is a BNC jack, female socket, designed for 50 Ohm systems and rated to 4 GHz with a typical insertion loss of 0.2 dB. The bayonet lock gives quick connect/disconnect in field-service or test setups—no threads to cross, just a quarter-turn. The free-hanging (in-line) body suits it for cable-to-equipment runs where a panel mount isn't needed.
This kit is built for RG-174, RG-188, and RG-316 coax—common thin-diameter cables for short-run RF and test leads. The shield and centre contact both terminate via crimp, which delivers a consistent, repeatable connection if you have the right die set. The package includes the connector body, one contact, and one ferrule—everything you need for a single termination, minus the cable and the crimp tool.