1968 Evinrude 85hp - small or big hub prop?

I have a '68 evinrude 85hp, model 85893A. So far, so good. Want to get an extra prop, prop nut, thrust washer, drive pin and cotter pin but not sure if it is a small or large hub and don't know how to tell. it currently has a 9.5" wide prop and i am assuming it is a 10 pitch. on the inside of the prop nut i have i can make out the numbers "380" but the rest is worn out. Does this indicate that it is a large hub? for part numbers...prop nut 380610, drive pin 307217, thrust washer 304576 and cotter pin 307244??
thanks for any help that can be provided.

There was a small hub prop offered for large boats / big loads.-------------What type of boat do you have and is your motor in good running condition ??

the boat is a 15' glastron trihull, same vintage and the motor is in good running condition.