AN Fitting Size Guide:
The AN numbers refer to the tubing OD in sixteenths of an inch.
AN SIZE |
MALE THREAD SIZE |
TUBE SIZE (NOMINAL OD) | HOSE ID |
4AN | 7/16"-20 | 1/4" | 0.22" |
6AN | 9/16"-18 | 3/8" | 0.34" |
8AN | 3/4"-16 | 1/2" | 0.44" |
10AN | 7/8"-14 | 5/8" | 0.56" |
12AN | 1 1/16"-12 | 3/4" | 0.69" |