Is there an o-ring?

Is there an o-ring where the fuel line clips/connects to the fuel rail?

I'm getting all the stuff together to do my head gasket next week. Of course I'm going to be taking off the manifolds, so I'm going to have to disconnect the fuel line at the fuel rail. I was at the dealer today picking up new head and manifold bolts, so I figured that I'd get an o-ring for that connection. The problem is, there isn't one listed for it. I would think that a connection like that would have to have some sort of seal. Or is it just a metal-to-metal seal like a compression fitting?

A little help here please...

no oring and if youre doing the head gasket without a vlve job lift the head off with an engine crane with out pulling the manifolds its much easier

mine has o-rings on both ends of the fuel rail.

not sure about a 97+ but mine has O-rings... im missing one actually and my fuel line will leak a few drops if i bump around alot