Need to find replacement part for this window sash balance

A home owner from Bathroom window says:
December 17, 2023
I see it says 11600A-3, 11600-17

On the tabs it says J3 597 or 587 and 519.

Need help finding replacement
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Bob from SWISCO responded:
December 17, 2023

Thanks for posting. See our 24-531. This is meant to replace old Andersen sash balances with the stamp '519'. Let me know if you have further questions. 
Andersen Sash Balance, 519, 523, 525, 527, 531
Andersen Sash Balance, 519, 523, 525, 527, 531
24-531
$54.20
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