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Russell Performance Tech Discussion

Please take note that this page is not set to full scale. Please download and print this full scale pdf so that you can lay your fitting over the appropriate drawing to determine the correct size fitting you have.

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.

Standard Automotive Hose Size-AN Equivelent Hose Size
1/4"=-4 AN
3/8"=-6 AN
1/2"=-8 AN
5/8"=-10 AN
3/4"=-12 AN
1"=-16 AN
1-1/4"=-20 AN
1-1/2"=-24 AN
MALE AN ADAPTER IDENTIFICATION CHART

The line drawings below 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 below to find pipe thread size. Place fitting against base line; read fitting size where it intersects the vertical line.

AN SizeMetal Tube O.D.Thread Size
-3 AN3/16"3/8" - 24 SAE
-4 AN1/4"7/16" - 20 SAE
-5 AN5/16"1/2" - 20 SAE
-6 AN3/8"9/16" - 18 SAE
-8 AN1/2"3/4" - 16 SAE
-10 AN5/8"7/8" - 14 SAE
-12 AN3/4"1-1/16" - 12 SAE
-16 AN1"1-5/16" - 12 SAE
-20 AN1-1/4"1-5/8" - 12 SAE
PROFLEX HOSE CHART

Use the chart below for ProFlex Hose Usage

AN SizeAcutal I.D.Nominal I.D.O.DMax PSITypical Use
-4 AN7/32"1/4"1/2"1000Small oil and fuel lines, fuel gauges, and vacuum lines
-6 AN11/32"3/8"9/16"750Carburetor, fuel, and oil lines
-8 AN7/16"1/2"5/8"750Fuel, oil, water lines
-10 AN9/16"5/8"25/32"750Fuel, oil, water lines, heater hoses
-12 AN11/16"3/4"29/32"750Fuel, oil, water lines, heater hoses
-16 AN7/8"1"1-1/8"750Fuel, oil, water lines, heater hoses
-20 AN1-1/8"1-1/4"1-7/16"750Fuel, oil, water lines
B-NUT SIZE CHART

The line drawings below 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

HOW TO ASSEMBLE PROFLEX & PRORACE HOSE WITH FULL FLOW HOSE ENDS

HOW TO ASSEMBLE PROCLASSIC HOSE WITH 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