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AN (Army-Navy) Fitting Thread Size Chart

AN Size

Hose Size

Thread Size
-3 3/16 3/8-24 SAE
-4 1/4 7/16-20 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 SAE
-16 1 1-5/16 SAE
-20 1-1/4 1-5/8 SAE

 

 

"NPT" (National Pipe Thread) Thread Size Chart

 

 

Pipe Thread Threads per Inch Inside Dia.
1/8 27 1/8
1/4 18 1/4
3/8 18 3/8
1/2 14 1/2
3/4 14 3/4
1 11-1/2 1

 

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