You can also go to the Husqvarna website and it takes a little searching, but there is a parts list there! You can't order direct from the site, but you would have your part number.
I absolutely love my Husqvarna Platninum sewing machine, but the dealer is so difficult to work with that if I had it to do over, I would have gone with Bernina. Their dealer is great whether you buy from him or not!
Once you have the part number, check out Ebay. There are usually parts available there.
Good luck!
Sara