Coil balance replacement

A quick learner from California says:
August 24, 2022
The entire coil balance assembly has failed in different ways in multiple windows. Looking to replace them all. I think I have an S190 coil spring, but am unsure of the size. It's either a 6 or a 9 stamped into the spring, but I don't know which way is up! It's a 9 when looking with the screw hole above the stamp. Also, the T shaped pin (?) that goes on the bottom of the window sash has gone missing. Any advice on the proper part numbers based on what you see in the pics? Thank you.
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Emily from SWISCO responded:
August 26, 2022

Hi there!

I recommend our 15-180 shoe, which is compatible with the Series 190 springs, 15-182 bushing and 15-186 balance clip. I'm afraid I can't determine if that's a 6 or 9 either as it's too faded. With that said, you'll need to weigh the sash on a scale and divide the weight by the total number of springs in the window to determine the correct coil spring weights. If you're unsure, tell me the precise sash weight and I can calculate what you need from there. 

As for the pivot bar, is there an identical window in the house? If there is, we can use that as a reference for what you may need.
A quick learner from California says:
August 26, 2022
Thank you for the response. I placed an order ahead of your reply and looks like I guessed correctly. We'll see how the spring size works out. I went with 26-378 for the pivot bar. The dimensions seemed to match the piece I was able to find. Will test these selections out on the first window and do the rest if successful. Thank you again!
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Emily from SWISCO responded:
August 26, 2022

My pleasure! Good luck with the repair and let me know if you need anything else! 
A quick learner from California says:
August 27, 2022
Received all of these parts today and... success! Thank you! I know more about windows than I did a week ago. Appreciate you guys!
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Emily from SWISCO responded:
August 29, 2022

Awesome! That's great news. Thank you so much for the confirmation and please let us know if you needed assistance in the future. We're always here to help.
Coil Balance Clip
Coil Balance Clip
15-186
$5.05
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Balance Bushing
Balance Bushing
15-182
$1.80
3" Pivot Bar
3" Pivot Bar
26-378
$2.10
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How to remove window pivot shoes
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