I see no responses to you so far.......so in the mean time, I don’t know your coach, but you could try contacting Thor to see if they can provide you with a parts drawing/part numbers for your emergency window. At least that way you can order them via Dealer etc. There are some RV window parts suppliers that may also have what you need......link attached for one. They may have more than the parts shown as I just did a quick search. Hope it helps you out.
Search for RV Parts and Accessories - Pelland Enterprises