The rudder is broken on my Boreal kayak. I need the plastic part that sits on top of the rudder pin

The rudder is broken on my Boreal kayak. I need the plastic part that sits on top of the rudder pin

Thanks you likely need this piece called the Delrin Block pin:
https://boutiqueborealdesign.com/products/umat-018-delrin-block-with-pin

Hope this helps,