3a all ends thread class ream one end to 0.177 in. dia. by 0.310 in. deep anodize surface treated flared w/ center wrenching facility unf all ends thread series
Used on aircraft, c-5, f-4, f-16; ship, lcac. 3a 1st end thread class 12 1st end thread quantity per inch weapons system essential passivate surface treated unj 1st end thread series
right-hand 0.233" thread length 0.355" overall length three holes drilled through hexagon corners 0.039 in. min, 0.044 in. max hexagon, internal thread, shouldered
3b all ends thread class 2.469" overall length 12 all ends thread quantity per inch passivate body surface treated male coupling half unj all ends thread series
