CertainTeed Pivot Shoes

A handy person from New Hampshire says:

I attached two pictures of the parts I am looking for my CertainTeed double-hung window. I have the SK 336 Coiled Balance Springs. Please confirm that the right part for the spring is the 336 Series 170 as I have seen in a post on this site.

Also, can you help me identify the right pivot shoes like in the attached pictures?


User submitted photos of a pivot shoe.
Profile picture of Tom
Tom from SWISCO responded:
Hey, Christos. Thanks for contacting us. Now, it's hard to tell if you have the Series 170 based on these images. However, your shoe closely resembles our 15-155. Compare them and let me know if you agree. If you think you have the 15-155, then this is commonly used with the Series 170 spring so I think it is, indeed, the best place to start.
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