This is the part mounted to the bottom of the tilt in window. The ends were cut off by the previous owner, now they will not go into window slide.
Casey from SWISCO responded:
July 13, 2018
Your pivot bar looks like our 2-3/4" Pivot Bar, Trocal, 26-056. You might find an intact pivot bar in a window that is still functioning. You could compare that to ours.