Need assistance to identify double hung window coil balance

A home owner from Springfield, MO says:
Can you identify this window coil balance? The plastic cam is broken,
I'd like to find a few replacement assemblies.


User submitted a photo of a coil balance.
Profile picture of Tom
Tom from SWISCO responded:
Thanks for posting, Doug. Please see our 15-180 pivot shoe, this appears to be a good match. If you need the other parts in your picture, see our Series 190 coil spring and 15-181 detent clip.
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