Mil-s-6709 comp a hardened to rc30-34,external involute spline data fillet root side fit,gear no 1;pitch dia. 1.100,pressure angle 30 deg,major dia. 1.150 minus .005,form dia. 1.046 ref.,minor dia. 1.000 minus .010,fillet radius .017 ref.,external gear data,pitch dia 2.3125 in.,pressure angle 20 deg. Outside dia. 2.375 in. Minus .003,whole tooth depth .0708-.0770