3a all ends thread class 3 holes 0.063 in. dia drilled in hex anodize inside surface treated flared w/ center wrenching facility unjf all ends thread series
Used on aircraft, f-16 (fighting falcon). 3a 2nd end thread class 12 1st end bulkhead thread quantity per inch weapon system essential passivate surface treated unj 1st end bulkhead thread series
3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch weapon system essential passivate surface treated unj 1st end bulkhead thread series
Used on f-16 aircraft. 3a 3rd end bulkhead thread class 12 3rd end bulkhead thread quantity per inch passivate inside surface treated unj 3rd end bulkhead thread series