Tilt out window coil spring and hardware

A quick learner from Merion, PA says:
I would like the pivot shoe, spring, coil support barrel and cap all for both sides. my spring has a # 7 on it. ? 7 lbs. Looks like part S150
the pivot shoe is 1/2 inch thick, 2.25 inc long and 1.25 wide
the coil support barrel is the part #15-145 I think ( 1/2 inch inside dia and 1/2 inch wide )
the cap is 15-147
I do not know which pivot shoe I need the # on the shoe is 530CSB-it is a locking shoe.
thanks for your help
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Bob from SWISCO responded:

Thanks for posting. Your Pivot Shoe looks like it might be our 15-219. Confirm that your dimensions match. If your Coil Spring has a #7 stamp, then I agree, it looks like a S150-7. Yes, I agree: the support looks like our 15-145 Coil barrel and 15-147 Bushing cap. Take a look and see what you think.

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