Coil balance

A quick learner from New York says:
July 16, 2023
What coil balance do I need? There is a number 7 embossed on it. Thank you
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Bob from SWISCO responded:
July 16, 2023

Thanks for posting. It's a bit tough to tell from this angle, but I believe that's a 15-180 Pivot Shoe. If so, this shoe uses Series 190 Coil Balances. A '7' stamp suggests you need an S190-740 7 pound spring. Let me know if you have further questions. 
740 S190 Coil Balance Spring
740 S190 Coil Balance Spring
S190-740
$9.74
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
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