Coil balance spring

A quick learner from El Dorado Hills California says:
June 5, 2018
The spring has two screws at the bottom and the number 640 stamped on the spring. The spring is 1/2 in wide
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Casey from SWISCO responded:
June 7, 2018

Hello,

It looks like you'll need our 190-640 coil spring. We have also listed some related parts for you to review. Take a look and let us know if you have any other questions. Thank you!
640 S190 Coil Balance Spring
640 S190 Coil Balance Spring
S190-640
$9.74
Coil Balance Shoe
Coil Balance Shoe
15-180
$3.97
Double Support Detent Clip
Double Support Detent Clip
15-181
$6.17
Balance Bushing
Balance Bushing
15-182
$1.80
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