Spring Assembly and Tilt latch

A handy person from Toledo Ohio says:
These pictures are from a Simonton Window. Each spring has a "4" on it so I assume that is 12lbs per side. The sash weighs 21.3 lbs on scale. This is the right side standing inside. I also need the tilt latch. I will be ordering more units than this, this is just a sample. Wanted to know if you carry this and what part number(s) I should look up. The thickness is 1/2", depth is
1 1/4". I have the bar code pic from each window but after talking to Simonton, they said that means really nothing (even though their video says "that"s all you need") and to contact you.
User submitted photos of a window balance.
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Paul from SWISCO responded:
Thanks for posting. I've made a list of parts that I think could work for you. You can see them on the right side of this page. I highly recommend comparing our pictures and dimensions to your own parts to confirm that they're the same.
A handy person from Toledo OH says:
Follow-up to D68397
Wondering if part T140 would substitute for the individual parts list supplied { S160-4, 15-150T, and 15-199} if I order the 12 lb version
If so, are these ordered Right and Left or are they universal
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Tom from SWISCO responded:
The Series 140 could work, but I can't confirm. The thickness for both shoes is a little different. We usually like sticking with what was installed originally, anyway. That way you won't run into any unforseen issues.
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