Yea brass or bronze should work fine. Can you look at the door's one to get guess on size?
$0R has the nylon disks plus bolt/nut for a $26 fix #126-14
https://www.sor.com/cat/126#tab2
What's wrong with it? Is the nylon bushing worn down in diameter? Drill the head off the shaft, press it out, make a new bushing, install. D&T shaft for retaining screw/washer.
I don't recognize the part, you got a part number