Window Part

Question

Hi,
Can you help me identify this window part? I can't figure it out. It looks like 1/2 inch. 27-4 AA CMC 7. I need 4 of them.

Casey · Accepted Answer

Hello,

It looks like you have either our S351-28, with a 15-002 bottom attachment, or S390-28, with a 15-001 bottom attachment. Take a look at the image below to determine which balance you'll need.

You'll also need a 2740 spring strength option for your replacement balances. Thank you!

Comparison of the S351 and S390 balance shoes.