Pivot lock shoe

A handy person from Middletown, RI says:
Please help me identify these window parts. There is no name on any of my windows.
House was built in the late 80's.
Approx. 2 1/8 long X 1 1/4 wide.
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Casey from SWISCO responded:

Hello,

I believe you need either the 15-188 or 15-178 pivot shoe. Depending on the thickness, one of these might work for you. Thanks for posting! 

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