This part has a centre tab that can be pushed up or down to stop window from opening wider than 3 inches. No part numbers on piece made of plastic. Screws to window frame.
Dave Sr. from SWISCO responded:
October 17, 2019
Hello,
Your part looks like our 26-275 limiting lock. Take a look and see how the dimensions match up to yours. Thank you!
A home owner from San Diego says:
October 11, 2020
Need to replace a broken tilt limit latch for vinyl window. This appears to be 2" wide.
Casey from SWISCO responded:
October 13, 2020
Hello, thanks for posting! Unfortunately we do not carry an exact match for your window lock limiter. We carry the 26-275 and the 26-387. Look them over, especially the video that relates to the 26-387, and see if either of these could work for you.