3a external thread class right-hand external 1.031" 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
3a 2nd end thread class 12 2nd end thread quantity per inch three holes 0.065 in. min 0.070 in. max dia, drilled thru hex corners, 0.312 in. from first end cadmium surface treated unj 2nd end thread series