"7STEEL,AMS5355B,17-4PH,3.550 IN. O/A LG,0.380 IN. THK,1 MTG HOLE,0.328 IN. DIA,INTERNAL INVOLUTE SPLINE DATA,27 TEETH,32/64 PITCH,30 DEG PRESSURE ANGLE,0.900 IN. MAJOR DIA,0.813 IN. MINOR DIA,0.879 MIN FORM DIA,0.008 ROOT RADIUS,0.844 IN. PITCH DIA"