sash release levers and internal latches for tilt windows

I need to replace a couple of sash release levers for windows at our rental. I also need to replace a few internal latches as the part that comes out and holds the window in place (not sure what the official name of the triangle-shaped retractable tooth is) has become brittle and broken with use and age on a few windows. The tilt window sash release lever appears to be your 26-001 part in white. It also looks like that lever goes with your latch 26-334. Is that always the case? I am just trying to get the parts without having to go back into the rental and take the window apart, but if I have to I will. Thanks.

I had been trying to avoid going into the apartment again, (just a lot of kids and turmoil there) which is why I was trying to describe the thing without a picture. However, I am going in there today and will try to get a picture of it and send it along. Thanks so much for your response.