| GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL PLATE,ALLOY,COMPOSITION 4130,SPEC QQ-S-626,FINISH TREAT PER TYPE 1 OR 3 SPEC TT-C-490,PRIME PER SPEC TT-P-636,ENAMEL OD SPEC TT-E-529 OR TT-E-485,10 HOLES 0.687 IN. DIA,20 HOLES 0.750 IN. DIA,5.250 ID; 18.000 OD; 4.625 IN. W,0.437 IN. THK |