"ALUMINUM ALLOY QQ-A-225/9 COMP 7075 COND T73 AND PLASTICFABROID TY 2G MPS 7-3009,ANODIZED FINISH PS13201 TY 2 CL 1,3.635 IN. MIN TO 3.645 IN. MAX O/A LG,3.994 IN.MIN TO 3.996 IN.MAXO/A DIA,3.493 IN. MIN TO 3.495 IN. MAX DIA BORE THRU,AS NOTEDMACHINED SURFACES 32.0 63.0 AND 125.0 MICROINCH FINISH"