"DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY: FIRST END, 0.906 IN. NOMINAL AND SECOND END, 0.561 IN. NOMINAL; FLANGE WIDTH: 2.340 IN. NOMINAL; HUB DIAMETER: 5.875 IN. NOMINAL; 1 KEYING FACILITY PROVIDED AT EACH END; KEYING FACILITY WIDTH: FIRST END, 0.375 IN. NOMINAL; SECOND END, 0.250 IN. NOMINAL; KEYING FACILITY LENGTH: BOTH ENDS, 3.031 IN. NOMINAL"