Andersen sash balance

A home owner from Holmdel, NJ says:
I need to replace some Andersen Sash Balancers 11600-17 (on a total of five different windows)

I can read the following numbers on the different parts:

Andersen 11600-17 BB6 519 10 67
Andersen 11600-17 D747 #31 12 86
Andersen 11600-17 R13/927 10 87

Can you please help me identifying these parts?

Thank you very much!
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Tom from SWISCO responded:
Hello! We can definitely help. The key stamps here, I believe, are "519," "7#31," and "927." Are these numbers printed differently on their respective balances, perhaps larger or in a different font? If so, I recommend our 24-531 for the "519," 24-737 for the "7#31," and 24-939 for the "927."
A home owner from Holmdel, NJ says:
Yes, those are printed differently.
Thank you for your help!
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