After a bit more searching I was able to find a lead. It looks like KST makes one but I can't actually find it for sale anywhere. I have a quote request in with Mouser since they are a KST distributor. The part # is VCSNXD200A0. There is a little bit of information in their online catalog but I'm ...

Just wondering if you were able to find a NACS inlet with nozzle locking? I've been looking around with no luck. You can now buy inlets from Globtek and Amphenol but none of their options seem to include the nozzle lock.