i was unable to find this part
A quick learner from Connecticut says:
December 23, 2014
the part found in the images holds part # 26-056 found on your website, which is 2 3/4 pivot bar, trocal. there is no other way to secure the pivot bar into this window without the part found in my pictures.
Dave from SWISCO responded:
December 29, 2014
Unfortunately, I don't believe your part is still available. Instead, I would look at our 26-210 and see if you can make it work with your window. I cannot guarantee that it will, but it is the only possible replacement that we carry.