A quick learner from USA says:
June 29, 2015
I was hoping you can help identify a part. I am hoping you have a replacement for it. I have a Series 78, DH-R30, MST: 4563. I need to replace the plastic latches on a a bunch of windows. Do you have a latch that will work?
Tom from SWISCO responded:
June 30, 2015
These latches appear to match our 27-089P tilt latches. Please carefully regard our hardware and let me know if you agree.