Beware Generic Parts Made "For Eastman". Generic parts made "For Eastman" are not the same high levels of quality and consistency as "Genuine" Eastman Parts. A part that is only a few thousands of an inch too thick can cause a major machine failure.
For convenience, order the handy Eastman Service Kit (Part #820C2-2). It contains the most common replacement parts, and a complete sharpener adjustment tool kit with instructions.