Home | Register | Login | Contact Us

 
Auto Math
Classifieds
Forum
Gallery
Games
Garage
Tech Articles
Utilites
 

700R4 Swap | AN Thread Sizes | Cold Air Induction | Fuels | LS1 Info & Specs | Turbo Tech 101 | Weather Correction | Feature Car - 86 Vette

AN Thread Sizes


Plumbing up a fuel system in your hotrod and don't want to spend an arm and a leg for those AN fittings. Instead of running the expensive red or blue fittings you can go down to your local hydraulic shop and use SAE fittings.

"AN" (Army-Navy) sizes were established by the Aerospace industry. The AN numbers are equal to the outside diameter, O.D., of the tubing in 1/16". Since tubing and hoses can have different wall thicknesses, the size number does not necessarily tell you how large the inside diameter will be.

Each AN size number has its own standard thread size. For example using the table below if you needed a fitting for a 6AN then use a 9/16-18 SAE fitting and you should be all set.

AN Size Metal Tube O.D. Thread Size
2 1/8" 5/16-24 SAE
3 3/16" 3/8-24 SAE
4 1/4" 7/16-20 SAE
5 5/16" 1/2-20 SAE
6 3/8" 9/16-18 SAE
8 1/2" 3/4-16 SAE
10 5/8" 7/8-14 SAE
12 3/4" 1-1/16-12 SAE
16 1" 1-5/16-12 SAE
20 1-1/4" 1-5/8-12 SAE
24 1-1/2" 1-7/8-12 SAE
28 1-3/4" 2-1/4-12 SAE
32 2" 2-1/2-12 SAE



Home | Contact Us | Automath | Cam Files | Dyno Search | Forum | Garage | Picture Gallery | Reaction Timer

Copyright 1997-2014 SMOKEmUP.com All rights reserved.
Advertising Info     Disclaimer     Privacy Policy