Copper Washer 3/8" (ID=43/64") 

Fits:

Morra Models MF22/25 Disc Mowers

Farm-Maxx Models DMD Disc Mowers 

Farmtrac Models DM Disc Mowers W/4 Bolt Disc

First Choice Models DMD Disc Mowers

Replaces:

Morra #530001

First Choice #BAS-851289