"SUPPORT P/N 75A603047-2001,HAS DEMENSIONS OF 1.625 IN. THICK,3.67 IN. WIDE,AND 6.20 IN. LONG,IT IS MADE FROM ALUMINUM-7075-T7351 AND PLATED WITH ANODIZE ACCORDING TO SPEC MMS-159 PLATE COND T7351,4 HOLES ARE DRILLED IN SUPPORT,TWO HAVE DIA OF 0.190 MIN AND 0.193 MAX,ONE HAS A HOLE DIA OF 0.250 MIN AND 0.253 MAX,AND ONE HAS A DIA OF 0.261 MIN AND 0.268 MAX. THE SUPPORT ALSO HAS A CIRCULAR FOUR BEARING P/N MS27648-16,ITS DIA IS 1.9375 MIN AND 1.9385 MAX"