Fuel line to AN fitting size

[Bob_n_Cincy]

Yep I was looking at RUS-644113. I was planning on those fittings and then buying premade PTFE line from ANplumbing.com. I rather get ones that are crimped assembly similar to SS brake lines. I just want them to be very secure. https://www.anplumbing.com/extras/premade-6-hose.html

I have tried the ones you were talking about from summit and I also had troubles getting a good seal in the past.

Redfogo,
The pressure line coming out of a Subaru pump assembly and the fuel connections at the engine use a 5/16 OD tube that has a ridge in the metal about 3/4" from the end.
See this picture.
fuelfitting.jpg

Here is a picture of the RUS-644113 fitting.
russel.jpg

The body of the part has an O ring in it. Slide it over the end of the tube as far as possible.

Then put the slotted bushing on the tube and screw it into the body of the fitting.
The ridge of the tube will be trapped in the fitting.

Let me know if this all makes sense.
Bob

[redfogo]

Redfogo,
The pressure line coming out of a Subaru pump assembly and the fuel connections at the engine use a 5/16 OD tube that has a ridge in the metal about 3/4" from the end.
See this picture.
fuelfitting.jpg

Here is a picture of the RUS-644113 fitting.
russel.jpg

The body of the part has an O ring in it. Slide it over the end of the tube as far as possible.

Then put the slotted bushing on the tube and screw it into the body of the fitting.
The ridge of the tube will be trapped in the fitting.

Let me know if this all makes sense.
Bob

Thanks Bob_n_Cincy, I found out that that I received a badly machined fitting it was slightly smaller then the other 5/16th fitting. I found another one and it fit correctly!