"ALUMINUM ALLOY QQ-A-200/11 OR QQ-A-225/9,ANODIZED FINISH,3.210 IN. O/A LG,3.923 IN. MIN TO 3.933 IN. MAX OD,1.750 IN. DIA BORE THRU,COUNTERBORE 3.240 IN. DIA 2.070 IN. DEEP,COUNTERBORE 1.999 IN. MIN TO 2.001 IN. MAX DIA 0.120 IN. DEEP,1.750-16 UN-3B THD 0.260 IN. LG,2ND END 3.375-16N 3B THD 0.474 IN. LG"