I don't know if this question is appropriate for this forum...behind the dash there is a 6 inch connecting linkage that connects the throttle to the disk apparatus for lack of a better term. It has what looks like a spring connector that fits over a nub on the disks and holds it in place. That connector came off the nub and while I put it back on, it doesn't look like it has the spring loading function that holds on to the nub....kind of like the snap on connections for the carburetor on an 8N. I would like to see about repairing it or replacing it...it is tight under there. What is it called (I dont' have a parts manual) so I can see about getting it right.

Sounds to me like you have a broken piece of linkage with a spring loaded ball end?
The round disc is a cork friction disc and helps keep the throttle in place.
So, did you break the nub off the metal plate on top of the cork friction disc or the end on the linkage?

Fleabay might be one source for those parts.
That disc should be universal between Ford and Ferguson, at least prior to the 8N and TO-35 era. Ford tractor hydraulic system from '39 to '48 was the Ferguson design.
After that things changed.

I dug out my 5/73 Fergy parts book and I suspect your machine might be a '30 model.
The MF 35 has no disc in it.