Encore Operator Gasket

I need replacement cranks for these 4 windows.....also a bag of those small parts that go in the arms. Can you identify?

I have a 2001 Milgard Classic Awning Window with accordion extension arms. End of each arm has circular hole holding metal piece that slides in track on underside of window and is held in place by a plastic clip. Only the metal piece on end is damaged/broken/lost (operating arm, crank and handle ... (cont.)

Our 2 Truth window crank apparatus no longer crank smoothly and we would like to replace them. They are about 25 years old.

HI, I need to buy a replacment part for my window. I had Windows Hawaii install it and they bought it from Amerimax which they said is no longer making these. Could you help me find the right part to order please. I've attached a few pictures here.

I am needing to get 2 of the black peices at the end of the 2 arms that connect to the awning portion of the window. Once they are on the arm portion they slide in the channel on the window.