Part on spline behind prop 2006 Nissan 9.8A3

[reginaldo]

I would like to replace the prop shaft seal(s) on a 2006 Nissan 9.8hp A3 model.

After removing the prop I am curious what is on the shaft directly behind the prop—it looks like a large diameter SS washer and a zinc but I am unable to determine these parts on the exploded view for the gear case [0] or drive system [1]. Am I missing something or is anyone able to help identify this part?
I thought it was the thrust holder (drive system part 15-7) but believe to be mistaken now that I’ve purchased a replacement thrust holder and am viewing it.

Thanks, let me know if the question or photos are confusing too.

0: https://www.tohatsu.online/product-...stroke-nissan/nsf9-8a3/14-gear-case-nsf9-8a3/

1: https://www.tohatsu.online/product-...nsf9-8a3/15-drive-system-water-pump-nsf9-8a3/

 

[99yam40]

according to the parts breakdown only things behind the prop are the #9 prop nut washer, #10 prop nut, and #11 split pin.

the thing in front of the prop would be #7 thrust holder

 

[reginaldo]

Okay the part I was looking to identify is indeed the thrust holder, I did not realize the part had been superseded which is why the new one is different (but thought it may be the case)