GENERAL CHARACTERISTICS ITEM DESCRIPTION | STEEL ALLOY,SAE 4140,5140 OR 8740; PHOSPHATE COATED; 4.500 IN. OD; 1.060 IN. THK; FIVE HOLES 0.406 IN. DIA; HOLES COUNTERBORED 1.000 IN. DIA AND 0.438 IN. DEEP; 2.652 IN. C TO C OF HOLES ON THE OUTER CIRCLE; ONE HOLE COUNTERBORED 1.000 DIA AND 0.625 IN. DEEP; TWO HOLES THD 3/8-24 UNF-2B BETWEEN LARGER HOLES |