Anderson Part BL23 9#31 7-86

A quick learner from Maryland says:
March 24, 2012
I need to identify the part that I need to replace iit is a sash balance. The markings are 11600-3 on one side. On the other side it is marked 11600-17. then has heavy markings BL23 9#31 7-86
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Paul from SWISCO responded:
March 26, 2012
Thank you for posting in our discussion board. Please take a look a tour 24-939 Andersen Sash Balance, which can be used to replace balance boxes stamped with 931.
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