O ring between crankshaft and propeller?

[cessnadriver]

Hello everybody.
I need to know the part number of the o-ring between the crankshaft and the propellers? As close as I can determine per the parts manual is A1633-3 Or -9?
If this is correct is there an AN or MS alternatives? I have already asked Cessna Pilot Asso and Don Nieson, no reply yet. Thanks, BILLS bstory@pa.rr.com

[Kim Geyer]

A1633-3 is what I get from the prop shop
Kim

[cessnadriver]

Thanks Kim. The prop shop said it's the -3, and it's the o-ring that goes onto the crankshaft?
Regards, BILLS