3a thread class right-hand 2.2650" overall length 0.2495" bore diameter 24 thread quantity per inch keyway length of shank per NAS559 chromium inner member surface treated ball type unf thread series
0.2495" bore diameter 0.0010-0.0020 in. radial clearance, flange on one end of outer race member 0.5600 in. nom dia, 0.0300 in. min 0.0400 in. max w of flange passivate inner member surface treated