HP BNC 1250-0212 where can I Buy, replace with other screw-in type BNC

[yuhar]

The Amphenol  112720 almost identical, but not fully (solder pin, extra o-ring)

- Where is it available, primarily in Europe?

This type of connectors are all 27mm long and, I can't screw it all the way in;

https://eu.mouser.com/ProductDetail/Rosenberger/51K504-200N5?qs=ehM%252BESVsXgz23tVtyJlogg%3D%3D


The original connector only 24 mm long together; 11 mm from the nut - inside the device.
Does anyone know of another solution without a washer?
Screw-in type BNC; not a frequent connector.