From Awnings By ZipDee
What part are you talking about? Part #7 must be aligned in the narrowest part of the part 3E-3F stud. It will fit on the wider part closer to the 3A Main Arm Tube but will not tolerate the awning being closed if in that position. I know.
I broke part #7 once upon a.. I learned never to close my awning without light of some sort. Luckily our area Airstream dealer had that in stock and I was back in business in less than 24 hours.
Zip-Dee is renowned for great customer service. Give them a phone call with your desired part and I'm betting you'd have it by the middle of next week.