"SURFACE,PHOSPHATE AMS 2481; 5.5635 IN. O/A LG.; 6.312 IN. MIN., 6.313 IN. MAX. O/A DIA.; FLANGE LOCATED ON ONE END; ROCKWELL C SCALE 23 MAX HARDNESS; 1.380 IN. MIN., 1.390 IN. MAX. O/A LG.; 6.440 IN. O/A DIA.; 0.420 IN. W OF FACE; 1ST STEP 0.670 IN. MIN., 0.690 IN. MAX. LG.; 3.800 IN. OD; 2ND STEP 0.140 IN. MIN., 0.150 IN. MAX. LG; 4.901 IN. MIN., 4.903 IN. MAX. OD; 3RD STEP 0.140 IN. LG.; 5.000 IN. OD; BORE, 3.140 IN. ID; 0.820 IN. MIN., 0.830 IN. MAX. DP; COUNTERBORE, 4.620 IN. ID; 0.560 IN. DP; FLANGE LOCATED ON OPPOSITE END; ROCKWELL C SCALE 23 MAX. HARDNESS; 1.430 IN. O/A LG; 6.060 IN. O/A DIA.; 0.320 IN. W OF FACE; 1ST STEP 0.780 IN. MIN., 0.790 IN. MAX. LG.; 3.800 IN. OD; 2ND STEP 0.180 IN. MIN., 0.200 IN.MAX. LG.; 4.901 IN. MIN., 4.903 IN. MAX. OD; 3RD STEP 0.130 IN. MIN., 0.140 IN. MAX. LG.; 5.000 IN. OD; BORE, 3.140 IN. ID; 0.780 IN. MIN., 0.790 IN. MAX. DP; COUNTERBOR, 4.620 IN. ID; 0.460 IN. DP; EACH FLANG, 15 HOLES 0.440 IN. DIA."