"EXTERNAL SPLINES BOTH ENDS; 24 TEETH; 20 DIAMETRAL PITCH; 30 DEG PRESSURE ANGLE; 0.340 IN. LG FIRST END; 0.215 IN. LG SECOND END; SPLINES 0.160 IN. FROM SECOND END; COUNTERBORE DIAMETER: SECOND END, 0.882 IN. NOMINAL; COUNTERBORE DEPTH: SECOND END, 0.410 IN. NOMINAL"