Coil spring balance with shoe

A contractor from Louisville KY says:

Hi. My name is Cory. I work for South End Glass and Mirror in Louisville Ky. I can't find something that matches this perfectly. Any help would be greatly appreciated. 

The overall size is 4 7/16. The width of the coil is 1/2". The height of the shoe is 1 9/16. The width of the shoe is 1 1/4. The thickness or depth of the shoe is 9/16. 

Thank you

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Tom from SWISCO responded:

Thanks for posting. Your balance system is an older style that is no longer made. It's actually kind of weird in that it's a hybrid of two different pivot shoes commonly use in MI windows: one which uses the 15-199 shoe and the other which uses the 15-180 . It's similar to both, but still different.

Now, w e've never been able to find an exact match, but our 15-199 is the best candidate. This shoe is 17/32" thick by 1-1/4" wide, so that should work for you. You can also use our 1/2" thick Series 160 coil spring along with either our 15-150D cover. Please review these parts and let me know what you think. 

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