spring-loaded catches

I have a double-hung window. The lower portion has a lock at the top at the center, while each side has a spring-loaded mechanism to keep the upper portion of that window in its track. Both of those spring-loaded mechanisms are broken, meaning that when the center lock is released, a strong breeze can force that lower portion to blow in, pivoting on the lower pins in the track.

The only identification I can find on the window is the following:
Series 5245
AAMA/NWWDA
101/I.S. 2-97
H-LC25-48 x 78

Thanks for any advice, suggestions, etc.
Jonathan M

Thanks for the response, Mike. I went onto the Swisco website and was able to (I'm pretty sure) identify the part as a 'Top Tilt Latch' and I ordered 1 each Right and Left. I also appreciated the video on removal and replacement. Thanks again!