3a all ends thread class 3.234" overall length 12 all ends thread quantity per inch passivate body surface treated male coupling half un all ends thread series
3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch aircraft application anodize surface treated flared w/ bulkhead thread unj 1st end bulkhead thread series
3b thread class right-hand 18 thread quantity per inch supports grumman A10 aircraft. thread series is unfj. nut style is A350 tube coupling. length to shoulder is "any acceptable". cadmium surface treated