Replacement balances and pivot bar for Simonton window
The stamp on the shoe is PAT NO 5,704,165
Hello there!
Sure, we can definitely help with this. The 15-199 pivot shoe and 1/2" Series 160 and 3/8" Series 165 coil springs are my recommendations. You'll have to measure the width of the coil spring band to see which one is best for your repair. If it's 1/2", see the 15-150T triple support. If it's 3/8", see the 15-205 instead.
Let me know if you have any questions!
What you're describing sounds a bit odd but it may be that whoever installed your window used whatever parts they had on hand to get the job done. It could also be that the spring snapped which makes it appear to be a triple coil when it may be just a double setup but I'm afraid I can't tell from these photos. We recommend checking an identical window in the house just to be safe.