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Hello I have been in the business for 55 years and have never seen a parts list for those, that is because you can take the motor along with the fan blade, to Grainger Industrial Supply and they will match it for you.. generally under $20. those are considered disposable beyond that level with labor at $120 an hour with a 2 hour minimum thats 3 or 4 times what a new fan will cost you.
The motors though, are cheap, and very easy to replace.
Let me know if that helps or if you still want me attempt to find a parts manual for those.
We can go from there, when you have the answer you need its time to locate the 'finish and rate your expert' link and click on it, lacking that I work at a loss. Thanks!