"DISTANCE FROM CENTER OF BORE TO TOP OF KEY: FIRST END, 0.900 IN. NOMINAL; SECOND END, 1.114 IN. NOMINAL; HUB DIAMETER: 2.240 IN. NOMINAL; 1 KEYING FACILITY INCLUDED, EACH END; KEYING FACILITY WIDTH: FIRST END, 0.190 IN. NOMINAL; SECOND END, 0.253 IN. NOMINAL"