| GENERAL CHARACTERISTICS ITEM DESCRIPTION | CRES,QQ-S-763 OR AMS5639 ROCKWELL HARDNESS RATING 83-93R15T,HEAT TREATED PER MIL-H-6875 PER UNITED AIRCRAFT SPEC NO. HS461,0.960 IN. MIN,0.964 IN. MAX,O/D,0.120 IN. THK 0.640 IN. MIN. 0.680 IN. MAX,I/D CENTER HOLE,0.908 IN. MIN,0.897 IN. MAX,O/D OF COUNTER BORE,0.080 IN. MIN,0.090 IN. MAX THK COUNTER BORE |