2a 2nd end thread class inlet has a raised face flange 0.112 in. thk 1.618 in. dia w/two mtg holes 0.210 in. dia 2.912 in. bolt c dia, raised face has a groove 0.145 in. w 0.070 in. d, 0.364 in. raised face h 1.156 in. dia unf all ends thread series
Used on aircraft, strato lift c-135. 3a 1st end bulkhead thread class 12 1st end bulkhead thread quantity per inch cadmium surface treated unj 1st end bulkhead thread series