"ALUMINUM ALLOY QQ-A-367 COMP 7075COND T73,ANODIZE MIL-A-8625 CL 2 TY 1,4.650 IN. OD,3.265 IN. MIN TO 3.270 IN. MAX ID,1.175 IN. H,4.125-16 UNJ-3A THD 0.665 IN. LG,4 SLOTS EQUALLY SPACED 0.310 IN. W 0.215IN. MIN TO 0.230 IN. MAX DP,1 INTERNAL GROOVE 0.124 IN. W 0.292 IN. DP"