Crestline sash windows 1997 (vinyl covered wood) replacement side spring assemblies
A contractor from Crete, IL says:
September 12, 2016
Press fit plastic assembly with foam backing containing sash spring and receiver for sash pins. Snaps into both side of frame to help raise and maintain sash in open position.
Tom from SWISCO responded:
September 13, 2016
Would you be able to show us a picture of the hardware in question? I'm having trouble visualizing what you've described. Thank you!