Broken coil

A handy person from New Jersey says:
April 18, 2024
Good afternoon, I have been looking all over for replacement coil assembly but have not been able to find an exact match. Do you happen to know or have a replacement available for this? I can provide dimensions if needed. Thanks.
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Thumbnail of the uploaded file named pivot shoe
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Emily from SWISCO responded:
April 22, 2024

Thanks for reaching out to us! The 15-180 pivot shoe looks like a modern version of what you have here. This is used with the S190 coil springs. I recommend you look at the band of the old springs to see if there's a stamped number.

If there aren't any, you will need to weigh the window sash and divide the weight by the number of springs in the window. 

Let me know if you have any questions! 
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Double Support Detent Clip
Double Support Detent Clip
15-181
$6.17
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