3a all ends thread class 12 all ends thread quantity per inch all end thread direction are r-h anodize inside surface treated branched un all ends thread series
3b thread class right-hand 12 thread quantity per inch external surface of nut has lobes spaced 22 DEG30 minutes apart for the full 360 deg, 16 lobes in all anodize surface treated
3a external thread class right-hand external 0.844" overall length passivate surface treated plug, tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic unjf external thread series