Need Andersen balances 11600-17

A quick learner from Buffalo, NY says:
May 22, 2011
I'm looking for the right sash balance pair for my window. Andersen, double-hung, glass is 32-1/2"x20" high.

They are Andersen Corp. 11600-17 is stamped on one side along with (somewhat unclear) 061 7/27 5-86

Thanks!
Profile picture of Donna
Donna from SWISCO responded:
May 24, 2011
I am not sure, it is not very clear from the numbers you gave us.

Are there any numbers on the side of the box?
A quick learner from Buffalo, NY says:
May 24, 2011
The box is 3/4" thick, 2-7/8" wide, 6-3/4" long including the 1/2" tab on one end. It looks just like the pics on your web site... so I suspect it's just a matter of getting the right spring strength (each sash weighs 15 lbs).

More numbers found... 3335-455. Our house was built in 1987... Andersen Corp, Bayport, Minn also on the balance ... (hopefully something useful in all of this)

Thanks again!
Profile picture of Paul
Paul from SWISCO responded:
May 27, 2011
Please take a look at the Swisco 24-737 Andersen Sash Balance.
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.