I believe this is called a tilt latch. The part is for a MI 3740 window. I need four of these if possible.
Bob from SWISCO responded:
May 28, 2019
Thanks for posting. Yes, this indeed a tilt latch. Look at our 26-351 Tilt Latch pair. Go over the dimensions, compare them to your old latches, and see if you think this is what you need.