I didn't even try google, as I have tried to find parts online before for myself.  Ever since 9/11, it is difficult to get propane parts unless you have a connection somewhere.  Usually your propane supplier can assist you, I have tried to pick up propane parts where I do not buy propane, and they looked at me like I was a terrorist wanting to blow up a school or make a  bomb.

Our local farm supply place still has many fittings and hoses, I usually get from my supplier or from Rural King.  You might try RuralKing.com, they may have something listed.