Tilt window pivot shoe and unknown part. Simonton Window

A quick learner from Alexandria Va. says:
March 17, 2021
Please look at pictures and tell me what parts I can buy for repair
Unknown part is first pic on the left with Phillips screw I don't know what it is or does thanks in advance for any help you can provide
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Tom from SWISCO responded:
March 18, 2021

Looks like you're showing me different pieces from a coil balance assembly. We sell all of these parts separately, but you only need to replace what's broken and just reuse the rest. See our 15-192 shoe, 15-156 cover, 15-157 bushing, and Series 170 spring. The video below will explain how these all work together.
CertainTeed Pivot Shoe
CertainTeed Pivot Shoe
15-192
$6.39
CertainTeed Lance Spring Cover, Wide
CertainTeed Lance Spring Cover, Wide
15-156
$1.97
CertainTeed Balance Drum
CertainTeed Balance Drum
15-157
$1.70
SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
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