need parts identified

A quick learner from Queens NY says:
Slide T-Pivot and Roller tilt
Thumbnail of the uploaded file named Window parts needed.jpeg
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Emily from SWISCO responded:

Hello there!

Your pivot shoe resembles our 15-087 that is used with the Series 180 coil springs. The stamped number 4 indicates the coil weight which means you would need the S180-4 4-pound coil spring. Compare our specifications with your hardware and see what you think. 

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