2 holes 0.438 , 0.452 inch diameter; 2 holes 0.250 , 0.265 inch diameter counterbore 0.310 , 0.340 inch by0.080 , 0.100 inch deep, fs fillet radius 0.030 , 0.040 ; finish with lusterless black finish per fed-std-595 color no 37038, nomenclature and marking with white finish per fed-std-595 color stock 0.22x1.6x12.5
