| GENERAL CHARACTERISTICS ITEM DESCRIPTION | CENTER HOLE IS THREADED 14.0 MILLIMETER X 2.0 THRU WITH A 25.5 MILLIMETER DIAMETER X 12.0 MILLIMETER DEEP PLAIN COUNTERBORE; THREE EVENLY SPACED MOUNTING HOLES LOCATED ON 77.0 MILLIMETER CENTERLINE WITH A NOMINAL DIAMETER OF 12.5 MILLIMETERS; MATERIAL IAW ASTM A36 OR ASTM A108, GRADES 1010 TO 1020, OR ASTM A576, GRADE 1018; SURFACE TREATMENT IAW ASTM B633, FE/ZN8 TYPE II WITH COLORED CHROMATE CONVERSION-OLIVE DRAB |