I need constant force springs

A handy person from Rockland County, NY says:
September 4, 2022
My window weighs 15 lbs and there is one spring on each side. The springs are 1/2' wide and have 932 stamped on them.

Two windows are totally broken so I need four springs. Please see attached pics for reference.

Thanks,
John
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Casey from SWISCO responded:
September 7, 2022

Hello,

Your pivot shoe looks like an older version of the 15-180, which uses the S190 coil springs. Your original 932 coil stamp would generally correlate to the S190-940 but that would support an 18-pound window. If yours only weighs 15-pounds, I would recommend using the 190-840 on each side instead. Take a look and thanks for posting! 
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
840 S190 Coil Balance Spring
840 S190 Coil Balance Spring
S190-840
$11.32
Coil Balance Clip
Coil Balance Clip
15-186
$5.05
Balance Bushing
Balance Bushing
15-182
$1.80
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