50 Ohm HD BNC Jack for LMR-195 — the cable match is the fit
The Amphenol 034-5080 is a 50 Ohm HD BNC jack, female socket, designed specifically for LMR-195 cable. Using a different cable group (LMR-240, RG-58, etc.) will shift the impedance and the crimp won't grip the jacket correctly.
6 GHz bandwidth, 500-cycle gold contact
Rated to 6 GHz maximum frequency, this HD BNC jack holds the 50 Ohm impedance line well into the low microwave region — beyond 6 GHz the VSWR climbs and the interface loses its match. That cycle life is standard for a bayonet-lock BNC; the gold-on-beryllium copper combination handles field reconnect without degrading contact resistance.