Replacement pivot shoe for Mastic PVC windows

I have Mastic windows from the late 1990s. The company is no longer in business. I need to replace pivot shoes on one of the windows. I used a digital caliper to measure the existing pivot shoes; they are 1.25in wide, 9/16in deep, and a 2 1/16in tall. The dimensions match the 15-129, and the pivot shoes look very similar. Would this replacement pivot shoe be used in a Mastic window? I just want to double-check before ordering. Thanks!