I recently had a window balance pop loose from the sash. I have Milgard, single hung, non-tilt windows. When I removed the balance I noticed that the top portion was damaged (parts of the catch area were chipped off and it was missing the spacer on one side). The top sash guide was also heavily damaged, as you can see.
The top sash guide appears to be 5/8" and looks similar to this product: https://www.swisco.com/5-8-Top/pd/Top-Sash-Channel-Balance-Guides/18-188 though the measurements of all the other dimensions are all slightly off (1/8" or less), but I was unsure if that was an exact match or close enough that it would suffice.
As far as the top, plastic portion of the balance itself, I was having a harder time determining how to size it properly. It is 9/16" wide, 1 1/4" length and 11/16" deep.
I was also unsure of the rivet size needed to re-affix the top portion. Are those fairly standard?
A photo of the balance stamp is also included to help narrow it down. It's a 27" balance, if that matters in the above cases.
Thanks for your help and time,
Joe