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If I was making the footprint:
Make a outline of a circle 6.4 or 6.5 circle.
The case is metal and could short out a trace under the part so:
>With silkscreen fill in the area between Diameter=6.5 and Diameter=5.33. Making a do-nut shape.
The terminals should match the silver areas shown here:
the picture looks like the metal is rised a little above the pads. Also, where does it say it requires a solder pad? The digikey page says that i HAS soler pads, but not necesarily for direct attachement to a pcb.