A contractor from Apex NC says:
August 5, 2014
I have this failed piece and like to know if you carry it. I am attaching 5 photos and will be sending another request with title " Spring Elevator Part 2" so you can continue to see it from different angles. The length is 28 3/4 approx.
Dave from SWISCO responded:
August 6, 2014
This part is known in the industry as a window balance. I believe this is our S860-28, though this balance has different sized shoes. Take a look and compare it with your sample dimensions to see if it could work.