Jam liner replacement piece

A home owner from USA says:
Hi Staff,
I am looking for replacement parts for my Rivco 1987 tilt sash double hung windows.

I am looking for vinyl jamb liner replacement pieces as some of mine are damaged, cam replacement assemblies, the stops for the lower sash that snap in the liners to stop the upward travel of the lower sash.

I hope the attached pictures are enough to allow you to identify my window jamb parts. The sash are wood 9 over 6, single pane glass. If you have questions please call.

Thanks for your help,
User submitted photos of window hardware.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting. Unfortunately, I cannot identify your pivot shoe based on this image. It is very blurry. Could it be something like our 15-109? If you aren't sure, is there any way we can see clearer photos of the pivot shoe removed from the jamb? I will also need to know its thickness and width.
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