1922 Bendix Issue

Today I took my Bendix off of the starter and remove the starter on my 22 Model t. However, I do not see a stop nut for the Bendix. Is this something that would be usual. Also, I am looking for a complete Bendix if anyone would have one for sale

Compare what you have with this illustration to see if you’re missing anything. Rebuilt Bendix assemblies sometimes appear on Ebay, but there aren’t any on there now.