Replacement parts for Acan Windows.
A contractor from Himrod, NY 14842 says:
June 30, 2016
Need 'pivot locking shoes' for several windows, (10 'shoes'). Sold under name Acan. Cannot find an exact duplicate in the photos you have posted. (See photo). Thickness 9/16". Will also need new spring and installation tool. Let me know if you need more info.
Paul from SWISCO responded:
July 1, 2016