Replacement Window Sash Parts
I am trying to identify these 4 parts for replacement for both sides of my window. I don't know their technical names, but I'd describe them as the spring, the spring carrier, the pulley block, and the sash bar or bolt. The spring has a number 6 (or is it a 9?) on it. The sash bar or bolt, the metal part that goes into the sash, has the letter "H" and then numbers 14110 on it. The spring carrier that slides up and down doesn't appear to have any markings. And the white plastic pulley block part that is screwed into the track similarly doesn't have any markings that I can see. You all helped me before and it's appreciated!
This coil shoe is a match for the 15-177 Coil Balance Shoe. The pivot bar can likely be replaced with the 26-466 Pivot Bar. To confirm that these are the correct replacements, carefully look over their specifications. The specifications for the pivot bar can be found on the website.
The compatible coil spring is the Series 152 Coil Balance, secured to the shoe using the 33-072 screw. I believe the stamp could be a 6 but the best way to confirm would be to get the exact weight of the window sash. If it is 12lbs, the S152-6 should be the correct replacement.
If you cannot reuse the existing coil support, you'll need the 15-143 Coil Bushing, 15-144 Coil Bushing Cap, and 15-143 Coil Support Barrel. All three are used together to create the support.