"ALUMINUM ALLOY QQ-A-225/9 COMP 7075 COND T73,ANODIZEFINISH PER PS13201 TY 2 CL 1,0.720 IN. O/A LG,1.375-18 UNJEF-3ATHD 0.280 IN. LG,0.374 IN. DIA BORE THRU,INTERNAL GROOVE0.245 IN. WIDE 0.088 IN.DEEP 0.250 IN. FROM END,AS NOTEDMACHINED SURFACES 32.0 63.0 AND 125.0 MICROINCH FINISH,COMMONAXIS DIA CONCENTRIC WITHIN 0.010 IN."