Fuel fitting where to buy??

[dubbsix]

Is it me but is it hard to find fuel fittings? I am looking for 2 90 degree fittings that are 1/4 npt to 5/16 and I have had little luck.

[306gt]

Is the 5/16" end inverted flare? If so it should be easy to find those at the local hardware store or plumbing supply store.

[dubbsix]

Inverted flare? Is that the same as a barb end? Im looking for that but I didnt think to try a hardware store or plumbing supply.. I just assumed because it was a fuel fitting that it was special lol