"ALUMINUM ALLOY QQ-A-225/9 COMP 7075 COND T73,ANODIZED FINISHCL 1 TY 2 PS13208,1.200 IN. MIN TO 1.210 IN. MAX LG,0.940 IN.OD,0.740 IN. MIN TO 0.750 IN. MAX DIA BORE THRU,8 HOLES THRUWALL EQUALLY SPACED 0.143 IN. MIN TO 0.147 IN. MAX DIA,AS NOTEDMACHINED SURFACES 16.0 AND 125.0 RHR FINISH"