These are the parts of the FFA.00.250.NTAC22Z plug:
From left to right:
Expose the cable shield by stripping away the outer insulation. Thread the shield through the collet and force it in to the limit.
Unwind the coaxial shield and wrap it over the collet so that the dielectric is visible, as shown above. Strip the dielectric to expose the conductor, and thread the conductor into the contact subassembly.
The assembly is now ready to be soldered. Apply solder to the conductor exposed in the groove of the gold pin.
Slide the Teflon insulator over the pin and reassemble the plug to the collet nut.