Need some help from guys who've been around this kind of stuff for awhile.
I have a coax chassis fitting which takes a UG-536B/U plug. I need to get
some kind of adapter to go from UG-536B/U to BNC. Would appreciate
identification of what such a fitting would be called, and some sources
where I can get one.

If worst come to worst and there isn't any such animal, I may just change
out the chassis fitting to a std coax/PL-259 thing.