ALUMINUM ALLOY QQ-A-327 COND T6;ANODIZED EMS52401 TY 1 CL A;0.020 IN. STOCK THK;4.030 IN. MIN 4.090 IN. MAX LG;4.030 IN. MIN 4.090 IN. MAX W;1.730 IN. MIN 1.770 IN. MAX DIA CENTRALLY LOCATED APERTURE;SIXTEEN 0.210 IN. MIN 0.230 IN. MAX DIA HOLES IRREGULARLY SPACED;0.480 IN. MIN 0.520 IN. MAX OUTSIDE CORNER RADIUS