Plastic Security Clip for sash Window

I have vinyl sash windows from the old defunct Air-Tite window company (Cincinnati, OH). I'm looking for a replacement part I call 'security clip'. Attached photos should show this part and where it goes. The function of this part is to limit the travel of the bottom sash to about a 2" opening when the clips are engaged outward as in the photo. I wouldn't mind a bag of 30 in beige/almond color. Thanks, Glenn