3a thread class right-hand 2.2975" overall length 0.3120" bore diameter 24 thread quantity per inch std nas 559 keyway in shank ball type unf thread series
0.3750" first hole diameter 7.7500" overall length tab on external flange, five tapped holes 3/8-16 nc, one hole 0.5400 in. dia which is 1/4 in. n.p.t. 22c-1 solid, external flange one end, internal flange one end