"2) 3/32"" DIA. DRILL HOLES, (1) THRU EACH POSITIONING HOLE LOCATED ON A CENTER LINE 0.30"" PORM .010"" FROM END OF FLANGE OPPOSITE HUB END; MATERIAL DATA:N,46B28,TYPE DESIGNATION,ANY ACCEPTABLE=(A/A); UNTHREADED BORE DEPTH:0.1500"" MIN., 0.1600"" MAX.; UNTHREADED BORE DIA.:0.3750"" MIN., 0.3754"" MAX.; BORE THREAD SIZE DESIGNATOR:3/8-16 NC; POSITIONING FACILITY BOLT CIRCLE DIA.:2.4985"" MIN., 2.5015"" MAX.; POSITIONING FACILITY QTY:2; POSITIONING HOLE STYLE:BODY-BOUND; BORE COUNTERBORE FEATURE:NOT INCLUDED; KEYING FACILITY QTY:1; O/A OUTSIDE DIMENSION:3.200"" NOM.; HUB OD:1"" NOM.; THREAD PROVISION:UNTHREADED; DISTANCE FROM CENTER OF BORE TO TOP OF KEY:0.2015"" NOM.; DISTANCE FROM CENTER OF BORE TO BOTTOM OF KEYWAY:A/A; KEY WIDTH:0.187"" MIN., 0.188"" MAX.; KEYWAY WD:A/A; FLANGE THICKNESS:0.550"" NOM."