Pin Cap replacement

A handy person from Allen Park, MI says:
I need 6 or so pin caps as shown in the pics. I need only the cap. The shaft that the pin cap goes on is 5/16 diameter. I believe the cap is 7/16 tall, perhaps a 1/2 inch. The bottom of the cap ( the larger ring) is 1/2 inch.
If you have a cap that will fit my pin shaft I would appreciate your recommendation.
Thank you,
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Paul from SWISCO responded:

Hello Brian. The closest match we have is our 21-152 . However, I can't say this resembles your original part, but I believe this could be worth a shot in reviewing it. It has a 5/16" inner diameter, but I am not sure what the diameter of your part is. Look it over and let us know if you think this will work for you.

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