"DISTANCE FROM BORE CENTERLINE TO BODY KEYING FACILITY BOTTOM/TOP:1.220"" NOM.; DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY:1.188"" NOM.; FLANGE THICKNESS:1.230"" NOM.; KEYWAY WD:0.375"" NOM.; THREAD PROVISION:UNTHREADED; HUB OD:4.000"" NOM.; KEYING FACILITY QTY:1; BORE COUNTERBORE FEATURE:NOT INCLUDED; SECURING METHOD:CLAMP; BODY KEYING FACILITY DEP/HT:0.570"" NOM."