1.651" outside diameter 40 thread quantity per inch single mounting hole on backface appendage; material spec B12H30c, fscm 30221; alodize per F65e CD3-2, fscm 30221 round unc thread series
3a thread class left-hand 2.3750" overall length 0.3122" bore diameter 20 thread quantity per inch 80 pct full of specified lubricant; standard nas 513 keyway in shank cadmium all external/exposed metal surfaces surface treated double row, staggered, ball unjf thread series