"STEEL,MIL-S-18729 COMP 4130,SHAPE MODIFIED L,DIM.,4.200 IN. NOM O/A LG,0.400 IN. NOM BASE W,0.063 IN. NOM THK,1.300 IN. NOM FLAT WIDTH,LOWER LEFT AND RIGHT CORNERS CUT AT 28.0 DEGANGLE 0.400 IN. FROM T0P W/CENTER 1.380 IN. LG,UPPER LEFT AND RIGHT CORNERS CUT INWARD TOWARD CENTER W/CENTER 1.440 IN. LG,ONE NOTCH 0.620 IN. FROM EACH END 0.240 IN. W BY 0.200 IN. DEEPONE HOLE 0.219 IN. DIA ON EACH END 0.350 IN. FROM FRONT W/3.590 IN. BETWEEN CENTERS,BACK BENT UPWARD AT 0.570 IN. FROM FRONT AT 120.0 DEG ANGLE"