Plastic window retainer

A home owner from Casselberry, FLA says:
February 2, 2023
This is a plastic piece in an older awning window probably from the late 70's early 80's. When the window is retracted, it helps keep the window tight to the frame. This one is in tact but I have others that are broken. If there is a difference, I need right and left sides of this part.
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Casey from SWISCO responded:
February 3, 2023

Hello,

Take a look and compare the specifications of the 39-539 Anderson hinge pair to your assembly. Thanks for posting.

Alternate image for 39-539
Alternate image for 39-539
Anderson Vent Hinge Pair
Anderson Vent Hinge Pair
39-539
$15.97
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