Looking for part info

A home owner from Wisconsin says:
August 28, 2023
I need to replace some broken parts such as pictured. The coil spring is 1/2" wide. Can you help me identify so I can get correct parts? Thank you
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Casey from SWISCO responded:
August 29, 2023

Hello,

We'd be happy to help but we would need to see your pivot shoe fully removed from the window to compare to our inventory. There should also be numbers stamped on the base of your coil springs, which you will need to choose the corresponding strength options. Thank you! 
A home owner from Wisconsin says:
September 21, 2023
I don't see any numbers on the part. Can you tell me what part number it is so I can replace some that are broken? 1¼" wide across the front.1½" tall. ½"wide on sides.
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A home owner from Wisconsin says:
September 21, 2023
I believe there is a number 7 stamped on the coil
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Casey from SWISCO responded:
September 22, 2023

Thanks for getting back to us. Your pivot shoe resembles the 15-177 shown below, which would use the S152-7 coil springs based on your stamp code. Take a look and let us know if you have any other questions. 

Alternate image for 15-177
Alternate image for 15-177
Coil Balance Shoe, Slate Blue
Coil Balance Shoe, Slate Blue
15-177
$3.47
7 lb Series 152 Coil Balance
7 lb Series 152 Coil Balance
S152-7
$4.80
Coil Bushing
Coil Bushing
15-143
$0.97
Coil Bushing Cap
Coil Bushing Cap
15-144
$0.70
Coil Support Barrel
Coil Support Barrel
15-145
$0.49
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