Looking for help with a part

A quick learner from Lancaster Pennsylvania says:
The window will not stay up. This is the part I am looking for. I am not familiar with this style of tilting window I am used to window shoes, springs.
Thumbnail of the uploaded file named Label
Thumbnail of the uploaded file named Bar and cam
Thumbnail of the uploaded file named Pivot bar
Thumbnail of the uploaded file named Shoe back
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Casey from SWISCO responded:

Hello,

I would recommend starting by comparing the specifications of the (17/32") 15-199 pivot shoe shown below to yours. This shoe is used with the (1/2") Series 160 or (3/8) Series 165 constant force coil springs. You'll need to measure the original coils and locate the stamp codes on them to confirm the correct replacements.

Alternate view of 15-199
Alternate view of 15-199

This assembly is commonly used with the 26-378 pivot bar but you'll need to remove it from the shoe cam to confirm that the specifications match up to ours. Thank you. 

Alternate image for 26-378
Alternate image for 26-378

A quick learner from Lancaster Pennsylvania says:
All the measurements are correct.thank you for your help.
Profile picture of Casey
Casey from SWISCO responded:

Great, we appreciate your business and please let us know if you need anything else! 

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