DOUBLEHUNG VINYL WINDOW
We can help with this assembly, but your exact components are no longer made. The good news is that we do sell the modern equivalents, which work in all the same applications without alteration.
Starting with the pivot shoe, you'll want our 15-177. Note that the springs install by sliding into the diagonal slots at the top. For the spring itself, see our Series 152. Lastly, the modern version of the cover is made of three components: the 15-143 bushing, the 15-144 bushing cap, and the 15-145 barrel. If your old covers are in good condition then they can just be reused.
All components are sold separately. Please let me know if you had any questions and we can do our best to assist.