lowen window pin that slides in track and keeps window flush

Hmm, I can't quite picture the part you're describing. May we see a photo of it removed from the window? 

I am afraid your photo(s) still have not come through. Could we have you email your photos irectly to help@swisco.com? In your email, also include your reference number, D138352. Thank you. 

Thank you for the photo. I am afraid this piece is not available by itself. You will need to replace the entire hinge set. Take a look at our 36-048 for consideration. 

Our 36-038 36-048 hinge set looks a little different, but they work the same way. As long as you replace the top and bottom then you should be okay.

The 39-541 will not work as a hinge slider in any capacity. This is meant to serve an entirely different function. No manufacturer provides the hinge slider separately, since they're riveted on. They are not meant to be repaired or replaced, so you'll need a new hinge. 

Sorry, that was a typo. I meant the 36-048, which is the same hinge we recommended earlier.