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Old 06-14-2008, 09:45 PM   #1
1971ChevyTruck
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AN fuel fitting question

I need some fittings to finish off my fuel cell. I don't know if the fitting on the tank is an 8n or 10n. Does anyone on here have the outside measurement for either of these so I can check before I order the fittings...
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Old 06-14-2008, 11:33 PM   #2
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Re: AN fuel fitting question

8 AN = 1/2" metal tube O.D. with 3/4"-16 threads
10 AN = 5/8" metal tube O.D. with 7/8"-14 threads

here ya go ... AN Chart - tube & threads
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Old 06-15-2008, 11:04 AM   #3
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Re: AN fuel fitting question

Quote:
Originally Posted by Shane View Post
8 AN = 1/2" metal tube O.D. with 3/4"-16 threads
10 AN = 5/8" metal tube O.D. with 7/8"-14 threads

here ya go ... AN Chart - tube & threads
Shane,

The AN Chart Link you supplied is a great source of information. You should pass that along to Krue so it can be added to the FAQ's link. Thanks,
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Old 06-14-2008, 11:35 PM   #4
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Re: AN fuel fitting question

Thanks so much...just wanted to be sure before I spent a fortune on fittings...
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Old 06-14-2008, 11:51 PM   #5
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Re: AN fuel fitting question

One way I remember to convert AN to inch is:

Example,

Take the -8 and make it 8/16, break that fraction all the way down to 1/2"

Take the -10 and do the same. 10/16 break down the fraction to the lowest which is 5/8.

It works with every AN. Just add the /16 to it, then break it down.
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Old 06-14-2008, 11:54 PM   #6
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Re: AN fuel fitting question

I just noticed the chart posted by Shane. Same thing, but if you dont have the chart available, you can easily figure it out with the fraction break down.
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Old 06-15-2008, 09:38 AM   #7
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Re: AN fuel fitting question

Trust me, You'll spend a fortune on fittings anyway. Braided fittings and hoses are like a drug,very addictive.I've got a braided radiator hose that I've had in use for 25 years.It's expensive,but worth it.The stuff just doesn't wear out,and looks great.
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Old 06-15-2008, 05:30 PM   #8
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Re: AN fuel fitting question

I can't take credit for the chart. I found it on the Web some time back and posted the link.

Also remember what putting the AN number over 16 then dividing / reducing ONLY gives you the TUBING SIZE ... NOT the thread size.
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Old 06-15-2008, 07:54 PM   #9
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Re: AN fuel fitting question

Check out your local hose/pipe shop. Their fittings are much cheaper than buying them from one of the auto manufacturers. They wont be all pretty and anodized, but who cares from your cell to filter.
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