GENERAL CHARACTERISTICS ITEM DESCRIPTION | ALUMINUM ALLOY,QQ-A-250/11,6061-T6; CHEMICAL FILM,MIL-C-5541,1A; 0.250 IN. THK; 0.875 IN. SQ,CORNERS 0.130 IN. AT 45 DEG ANGLE; 2 HOLES 4-40 UNC-2B BY 0.250 IN. DP,DIRECTLY OPPOSITE EACH OTHER ALONG WIDTH; 3 HOLES IN FACE 0.250 IN. DIA,0.350 IN. DIA BY 100 DEG CSK BOTH SIDES |