Used on aircraft, stratofortress b-52;aircraft, galaxy c-5. 3a all ends thread class weapon system essential cadmium surface treated unf 2nd end thread series
3a all ends thread class two safety wire holes 0.042 in. min. 0.052 in. max dia. in opposite corners of hex; supports grumman a-10 aircraft passivate inside surface treated unjf all ends thread series
Used on aircraft application. 3a 1st end bulkhead thread class 12 2nd end thread quantity per inch passivate outside surface treated unj 2nd end thread series