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Tech Information

THE 3 BASIC ELEMENTS OF PLUMBING
In order to plumb your vehicle with a minimum amount of time, effort and money, you should know the basics about hose, hose ends and adapter fittings. Hose diameters are assigned AN numbers. Using your automotive hose size, choose from the chart below to find the AN equivalent for hose, hose ends and adapter fittings. For example: a 3/8" standard hose equals -6 AN.
STD. AUTOMOTIVE HOSE AN EQUIVALENT
1/4" = -4
3/8" = -6
1/2" = -8
5/8" = -10
3/4" = -12
1" = -16
1-1/4" = -20
1-1/2" = -24
Another easy method to convert AN size to fractional is to remember that each AN number represents 1/16".
For example: -8 AN = 8/16" = 1/2".

MALE AN ADAPTER IDENTIFICATION CHART
The line drawings to the right depict actual sizes of the various common AN thread sizes by dash number. Lay your fitting over the appropriate drawing to determine what size fitting you have.

PIPE THREAD SIZE CHART
Use the diagram to the right to find pipe thread size. Place fitting against base line; read fitting size where it intersects the vertical line.
AN SIZE METAL TUBE O.D. THREAD SIZE
-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

B-NUT SIZE CHART
The line drawings to the right depict actual sizes of the various common types of fittings, hose ends and adapters. The number in parenthesis is SAE wrench size equivalent.

HOSE INSTALLATION TIPS

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HOW TO ASSEMBLE PROCLASSIC HOSE WITH PROCLASSIC CRIMP HOSE ENDS

HOW TO ASSEMBLE PROCLASSIC HOSE WITH FULL FLOW HOSE ENDS

HOW TO ASSEMBLE POWERFLEX HOSE & HOSE ENDS

HOW TO ASSEMBLE TWIST-LOK HOSE & HOSE ENDS