Thanks. I checked the website but it doesn't look like they stock any. And if it's special order it's really not worth it. I just need to order some parts for an electronics project, so I'm looking for additional parts to fill the order.
Sadly I don't have any documentation for the mill, and no search on "bridgeport connector" or similar has ever yielded any definitive results. Some have suggested Niphan, but I have only found those in banjo or screw, not push fit.