The 302493 o-ring number is correct. The 302495 seal is also SKF 6280 also on ebay right now for just under $20. Any SKF 6280 I ever bought was stainless.
I’m guessing you received the smaller diameter seal in that seal kit. I bought some bushings a while back from a member who made them that allows you to use that smaller seal in that bearing head.
If you want to do that I can send you one…email me at sdpiazza (at) aol.com
