It's its for Weber, tell him he's beat!
Honestly, I've never come across this before. Send a pick. Maybe there is a possibility to be able to retrieve the piece thru the top if you disasemble it. Then, reinsert the valve.
Option 2. Most butane fills that I've come across are near identical, at least from the outside. Removing one from a cheapo lighter and using it in his Swank could prove beneficial.
Sealing may be an issue but you'll notice right away. If you want to bring it over, I can take a closer look for you. I got some older butane lighters that I have no issue parting them to see if we can't get this one to work.