I have the mower blade spindle washer and bolt for sale. Both are new, unused. Fits many decks, I purchased these for the 54D deck
John Deere Washer M147138
John Deere Cap Screw 19M7872
These sell for about $11.00, I will sell both for $8 and that includes Free First Class shipping.
PayPal preferred payment so I can easily print the shipping label.