Used on F-35. 3a external thread class right-hand external 0.672" overall length 24 external thread quantity per inch passivate surface treated unf external thread series
3a external thread class right-hand external 1.094" overall length 12 external thread quantity per inch plug, flareless tube nom. tube sz. 2.0 in, wght. 0.965 cadmium surface treated plug, tube fitting flareless (note: drilled hole is optional, should not be considered as a separating characteristic) unj external thread series