Thanks for posting. We may be able to help, but there's actually a number of tilt latches that fit this description. If you could remove an undamaged version of one of your existing ones and show us pictures of it from a few different angles, we'll do our best to narrow down what you need.
These photos are a huge help, thanks!
This looks like an older version of our 26-390 and 26-391. The design may look a little different at first glance, but as long as the dimensions match up then I think it will work quite well. You can review them below.
These latches are both available in beige.