channel balance

Question

Can you confirm that the parts i'm considering are compatible? Notice my original channel balance has C2635 on it.

S770-27C (channel balance)
15-129 (pivot shoe)
26-241 (pivots)

User submitted image of their window hardware.

Paul · Accepted Answer

You are correct in choosing the 15-129 and 26-241, they look very close. The S770-27 also looks correct, but I'm not familiar with that #C2635 stamp. What is the weight of the sash?