Yeah the black nylon thing is what I need. I just have 2 felts, a metal washer thing and the wingnut. Also I think the felts might be a little too thick. That's what some other folks said.

I think I'll just buy this, it should have something I can use

https://www.amazon.com/gp/product/B08J47FZYW/ref=ox_sc_act_title_1?smid=A28DFNI3481CTT&th=1