"ALUMINUM ALLOY QQ-A-601 COMP 356-T6,SURFACE TREATMENT,CHEMICAL FILM BPS FW4182,SHAPE,CIRCULAR CAP W/TRIANGULAR SPACED MOUNTING TABS,DIM.,1.190 IN. O/A HT,1.650 IN. NOM OD,1.420 IN. NOM ID BY 1.020 IN. LG,3.000 IN. NOM O/A DIA INCLUDING PROJECTIONS,1.520 IN. NOM 1ST ID COUNTERBORE BY 0.540 IN. LG,1.780 IN. NOM 2ND COUNTERBORE DIA BY 0.280 IN. LG,TWO SLOTS 60.0 DEG W BY 0.820 IN. LG LOCATED AT ZERO AND 120.0 DEG ON CAP,THREE MOUNTING HOLES 0.280 IN. MIN,0.287 IN. MAX DIA LOCATED ON 2.156 IN. MIN,2.176 IN. MAX BOLT CIRCLE DIA"