Pivot block

Thanks for posting. This is a Simonton Pivot Shoe that is no longer made. The Certainteed pivot shoe 15-192 is very similar, but the alignment ridges on its surface make it incompatible with a Simonton window track. You might be able to get it to work by rubbing down those ridges, but we can't promise that will work.

detail of 15-192

Because of this issue, we've devised a substitute solution. The 15-259 Pivot Shoe can replace this old Simonton one, but you'll also need to replace the coil springs in the window with the Series 159. The video below shows how.