I may have some
I am supposed to be receiving an order from NPA Distributors, the gentleman there said he would throw in a bag of the friction washers. I don't have the order in hand yet but may have some spares.
There is a thread over on CSCse (I think I started it) discussing FM starters and fixes.
Last week Charlie Harper told me the best fix for the cup is to bore it out to accept the Sthil insert (1111 195 4100 or 111 195 9300, he was not sure which was steel and which was plastic) and press the Stihl insert into the worn FM cup. I need to do this for my Strunk one day.
If the parts arrive and I have a bunch of extra washers I will let you know.
Mark