Pivot bar replacement

I'm afraid that I couldn't find anything with the kind of hole spacing your pivot bar has. 1-11/16" and 2-1/16" are somewhat uncommon dimensions. The two you picked out, our 26-063 and 26-068, are potential matches since they have elongated holes, but nothing quite falls into the specifications you gave us here.

In a worst case scenario, you may be able to drill a new hole into the pivot bar to fit whatever is in your sash. I've done this before in a pinch. It's not ideal, but it's something to keep in mind.