Wrong part

A quick learner from Kunkletown, pa says:
I just sent a question on me ordering the wrong part. I looked everywhere and couldn't find what I thought was the right part.
The number on the coil is 10JS. I hope this will help in getting the right parts.
Thanks again
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Bob from SWISCO responded:

Hello. The pivot shoe you ordered is correct. It's the 15-192 . This shoe uses our Series 170 and Series 171 Coil Balances. The video below explains how these work. A stamp of 10 indicates you need coil springs that carry 10 pounds of support apiece. We don't carry coil springs of this Series with that rating, but what we recommend you do is use one S170-405 5 pound spring and one S171-405 5 pound spring, to equal that same 10 pounds of support. See all the parts I've listed on this page. 

SWISCO S170 and S171 Coil Balance Assembly
SWISCO S170 and S171 Coil Balance Assembly
VIDEO
WATCH >
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
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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