truth window identification help

Thanks for posting. To clarify, the hinge are the bars on the top and bottom of the sash that keep it attached to the frame and support its movement. Our 36-004-10 might work for you. Compare the dimensions below to ensure it matches up.

Detail of 36-048

Now, your operator's arms look awfully rusted. The casement operator is what drives the opening and closing of the sash. If you need to replace this, see either our 39-031 and 39-032, or the 39-155 and 39-156. These sets of operators are nearly identical save for the length of the link arm. See the diagrams below for reference. Compare both with your old hardware to see what matches best. In either case, for a new cover and handle that matches what you have, see the 39-107FK.

Dimensions for 39-031

Dimensions for 39-155