2a 1st end bulkhead thread class 24 1st end bulkhead thread quantity per inch captive sleeve long w/ offset wrenching facility uns all ends thread series
Used on aircraft fluid systems. 3a external thread class right-hand external 0.718" overall length 18 external thread quantity per inch 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 all ends thread class 2.969" overall length 12 all ends thread quantity per inch passivate body surface treated male coupling half un all ends thread series
Used on aircraft application. 3a all ends thread class 2.788" overall length 6 bolt hole quantity 12 all ends thread quantity per inch male coupling half un all ends thread series