A professional from Atlantic City , NJ says:
March 12, 2014
Sirs, I am trying to locate replacement pivot arms for multiple windows of an unknown manufacturer. Attached please find a photo of the part in question, any information available or a suitable replacement available would be greatly appreciated.
Paul from SWISCO responded:
March 13, 2014
The closest I was able to find was our 26-030, though you may have to use a new screw hole.