I would like to order a replacement part and need help identifying the part number. There are two attachments. One shows the window label showing the window part number. The second photo shows the part I am trying to identify and order. I think it might be called a balance spring. It provides resistance to the window so it maintains its position when open. The one I need is for the left side of the window when viewed from the inside looking out.
Thank you for your help
Rick