"ALUMINUM ALLOY QQ-A-225/9 COMP 7075 COND T73,ANODIZE FINISHPS13201 TY 2 CL 1,2.250 IN. O/A LG,4.927 IN. MIN TO 4.929 IN.MAX OD,3.750 IN. DIA BORE THRU,COUNTER BORE 4.390 IN. MIN TO4.392 IN. MAX ID 1.310 IN. DEEP,4.375-16 UNJ-3B THD0.535 IN. LG,SHOT PEEN"