Hey guys, I need to order a couple of caps for a custom fuel tank setup. It currently has some AN style fittings coming out of the tank in which I need them all to be capped off. I know that I need three different sizes and I want to make one order.

Coming out of the tank is a male tapered fitting about the size of a quarter.....then I have one the next size down and the other the next size down from that one.

Is there any way I can measure these with a micrometer and figure out what I need?

I never found a "How to read AN fittings" page anywhere on the net.

Any help would be cool,

Thanks,

Joe

Try this.

http://www.aeroquip.com/media/performance/A-SPPE-MC001-E-p48.pdf