What is the part number for the coil on top.

A quick learner from Fresno says:
The coil with the cam goes on the bottom of the window. I have that part number, but hat is the part # for the coil without the cam?
User submitted photos of a window balance.
Profile picture of Paul
Paul from SWISCO responded:
It seems you may be looking for our S140-8 quick-tilt coil spring. These are available in left and right. Take a look and let us know if you agree.
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