Help with spring system

A quick learner from Gallipolis, ohio says:
June 19, 2017
I'm looking for the part to this window. It holds the window up?
Coil assembly
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Tom from SWISCO responded:
June 21, 2017
Thanks for posting. We should be able to help. Can you show me a clear picture of the pivot shoe? That will help us determine the rest of the hardware that makes up this balance system.
A quick learner says:
June 26, 2017
This is the pivot shoe
shoe
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Paul from SWISCO responded:
June 28, 2017
Thank you. The pivot shoe appears to match our 15-177, which is made to use the Series 152 spring. You will need the number from the old spring to determine the best Series 152 option.
A quick learner says:
June 29, 2017
This is the spring that was in the window the hole is at the top
Help with spring system
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Paul from SWISCO responded:
July 3, 2017
Thank you! That looks like a 6, so I would recommend our S152-6.
Coil Balance Shoe, Slate Blue
Coil Balance Shoe, Slate Blue
15-177
$3.47
6 lb Series 152 Coil Balance
6 lb Series 152 Coil Balance
S152-6
$4.80
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