Coil balance Inquiry

A quick learner from St. Louis, Missouri says:
From your catalog I believe the repair parts for this balance and related parts are:
Part Number Quantity Needed
#15-181 Support Clip--------- 6
#33-073 Screws--------------- 10
#S190-540 Coil--------------- 10
#15-180 Coil Balance Shoe---- 10
Please advise if any items are incorrect and place an order for the needed parts.

Thank you............
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Bob from SWISCO responded:

Thanks for writing in. This indeed looks right to me--the 15-180 Pivot Shoe uses our Series 190 Coil Balances. Just confirm the spring weights you need. The S190-540 supports 5 pounds of weight individually; look for a '5' stamp somewhere on the coil spring itself to confirm this is the spring weight you need. If you're uncertain, give me the exact weight of the window sash, and we can work out what you need. 

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