Parts are the white plastic clutch or I beleive your part 15-104. See the attached photos

A home owner from Blue Springs Mo,64014 says:
I removed the two sashes from one of my windows to determine what parts I would need to repair. Window will not stay open. I removed the white plastic part from the spring. How does this part attach to the window?

User submitted photos of window hardware.
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Tom from SWISCO responded:
Thank you for posting! I agree, our 15-104 looks like a good match for your shoe, assuming all the dimensions match up. Unfortunately, we do not carry these spring balances. You see, they are built into the jamb. I recommend contacting a local mill works that still makes wood windows and see if they can make replacement jambs for you.
A quick learner from Blue Springs Mo,64014 says:
I do not need the spring. Just curious how the part attaches to the window
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Paul from SWISCO responded:
You would remove the vinyl jamb liner and then slide out the spring with the broken nylon shoe. After that, you'd just install the spring with a new shoe attached in the jamb liner by reversing the process.
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