3a 1st end bulkhead thread class color yellow; pressed in fit restrictor 0.220 in. dia, 0.250 in. lg; chamfered one end 45 deg unjf all ends thread series
3a external thread class right-hand external 0.812" overall length precision type, mark with equilateral triangle depressed 0.025 in. on top of hex head plug, tube fitting flared (note: drilled hole is optional should not be considered as a separating characteristic unjf external thread series
