Please see attached pictures - trying to identify to order replacements

A home owner from Turks and Caicos says:
These came from CertainTeed Windows installed in the Turks and Caicos in late 90s or early 2000s. Can you identify and do you stock the part.
User submitted photos of window hardware.
Profile picture of Paul
Paul from SWISCO responded:
The parts you show resemble our 15-156 spring cover, 15-157 balance drum, and 15-192 pivot shoe. CertainTeed now uses the new style 26-175 pivot bars, but they should still fit in the new pivot shoes. Also see our Series 170 coil spring. You will need the number stamped on the old spring when ordering.
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