The washer measures just under 1/8 inch thick and the OD is 1-3/4 inches and the ID is 1 inch. The tongue inside measures about 5/32 inch square. view full answer...
I went out in the warehouse and measured the Redline Washer Spindle Tongue # 165863. The overall diameter of the washer is 1-3/4 inches. The inner diameter is 1 inch. view full answer...
On the Spindle washer, # 1655863, that little nub on the inside is called the tongue. It is designed to prevent the washer from spinning and wearing out. view full answer...