Used on jet engine, aircraft. open end w/hex flange, 1.114 in. min, 1.127 in. max w across flats by 0.085 in. min, 0.095 in. max thk cadmium surface treated cylindrical unf 2nd end thread series
3a external thread class right-hand external 0.609" overall length anodize surface treated C43 plug, tube fitting flareless (note: drilled hole is optional should not be considered as a separating characteristic) unjf external thread series
Used on grumman a10 aircraft. 3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch cadmium surface treated unj 1st end bulkhead thread series