The 031-70573-12G: This jack is specced for Belden 4505P, a 75 Ohm precision video coax. The crimp termination on both the shield and center contact means the cable braid is captured by the crimp ferrule and the center conductor is crimped into the gold-plated phosphor bronze contact — no solder, which speeds field termination and keeps the impedance consistent through the joint. The PTFE dielectric maintains the 75 Ohm line through the connector body.
Cross-Shop: Panel-Mount vs In-Line
The 031-70573-12G is a free-hanging in-line jack. If the build needs a bulkhead-mounted version, the 031-70576-12G and 031-70577-12G are both front-side nut panel-mount jacks with solder termination instead of crimp — same 75 Ohm, same 12 GHz, same 500-cycle rating, but the termination method and mounting flange change the assembly process. The 031-70572-12G is the mating plug (male pin) for this jack, also crimp-terminated for Belden 4505P, so a mated pair can be built with the same cable prep.