Help identifying sash balance

A handy person from New Jersey says:
First off... I think this service is fantastic! I read all the posts and didn't find my sash balance. These are my numbers, what is the replacement?

11600-17

02 L9 1327 7-87

I'm curious by nature and was wondering what the numbers mean?
Thank you,
Tim
User submitted photos of window hardware.
Profile picture of Donna
Donna from SWISCO responded:
Thanks for posting! We actually don't currently have this balance as it is not a popular size, but I'd be happy to bring in the left and right hand version of this balance for you, since it's a good idea to replace both. I'll post here again as soon as I have something for you to look at!
Profile picture of Tom
Tom from SWISCO responded:
Alright, Tim, take a look at our new 24-R13-927 and 24-L9-1327. I believe these are the appropriate replacements for your hardware.
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 4-7 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at 856-317-6263 or at help@swisco.com.