Used on b-1b ldg. 3b thread class right-hand 16 thread quantity per inch name on drawing, thread bushing-repair, nomenclature threaded bushing un thread series
Used on b1b. submitted item name was bushwing fuel tank. 3b thread class right-hand 0.185" thread length 32 thread quantity per inch tap drill thru 100 degrees csk 0.280 dia, 0.150 dia c bore , 0.031 fillet radius to dimensons shown blind unjc thread series