Steel, ams6415; 3.045 in. Min, 3.070 in. Max o/a lg; 1st end internal splines, 49 teeth, 30 degrees pressure angle, 1.0208 in. Nom pitch dia, 1.000 in. Min, 1.003 in. Max minor dia, 0.185 in. Min, 0.205 in. Max lg splines; 2nd end external splines, 13 teeth, 30 degrees pressure angle, 0.40625 in. Nom pitch dia, 0.4845 in. Min, 0.4850 in. Max major dia, 0.500 in. Nom lg splines