tilt in sash double hung vinyl frame window

Two tilt in sash double hung vinyl frame window with the following information etched onto the glass igmac 1gcc cba cardinal ig cig-3 1-97 US Cardinal Glass Insulating Glass

This part attaches to a spring on the inside vertical window frame rail. There is a piece that is broken off that a peg located on the window glass frame attaches to Measurements are 25 millimeters wide, 15 millimeters at thickest area and 54millimeters long