Certainteed coil window balance

A quick learner from Auburn Mass says:
I believe the window was made by Certainteed. The coil is about 3/4 inch wide and it has #403 on it. I am looking for the whole unit. About 1 1/4" wide from the front view.
Thanks
A customer submitted photo of a coil balance and shoe.
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Paul from SWISCO responded:
Thanks for posting! Can you please confirm the stamp on your coil balance? We do not have a #403.

For the pivot lock shoe, however, please look at our 15-192 and see if you think it might work.
A quick learner from Auburn says:
I looked under a strong magnifying glass and it looks like the spring is # 408
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Paul from SWISCO responded:
Thank you for verifying! In that case, please take a look at our S170-408 coil balance.
A quick learner from Auburn says:
Lokks good. The only number that doesnt match is on part #15-192. You show 1 3/8 and the one I have measures 1 1/4
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Paul from SWISCO responded:
Actually, we took out our 15-192 to check our own dimensions, and it turns out they measure 1-1/4" in overall width, as well! With that in mind, do you think it could work out?
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