In Reply to: Ford 8n input shaft posted by thad on November 16, 2020 at 18:18:28:
I assume you are referring to the input shaft for the transmission. The Ford numbers are:
Seal, 8N 7052-A
Bearing (engine side of gear), 9N 7066
Cup (engine side of gear), 9N 7067
Bearing (transmission side of gear), 9N 7120
That being said, there are likely manufacturer part numbers on the parts themselves that any place that sells bearings and seals can cross over to equivalent brands. Seals can easily be located based on inside diameter, outside diameter, and thickness.
Also, on this site under the Manuals tab is a 1949 parts manual that will show you all the part numbers and exploded views for all assemblies of the tractor (see link).