As I have already written elsewhere, the original connectors are from LEMO.
In the 4808 and 4600 are EGJ.2B.306 and EGG.2B.306.
The mating plugs are FGJ.2B.306 and FGG.2B.306.
You can get them in crimp and solder versions.
I personally much prefer to crimp,
But crimping is only an option, if you also have the necessary crimp tools.