| GENERAL CHARACTERISTICS ITEM DESCRIPTION | COPPER-NICKEL,MIL-C-20159,TYPE 1; 21.000 IN. W BASE,21.500 IN. DIA BODY,10.630 IN. O/A DEEP FROM FRONT TO BACK BODY,9.500 IN. O/A DEEP FROM FRONT TO BACK BASE; WITH TWELVE THD HOLES EQUALLY SPACED ON A 20.000 IN. DIA BOLT CIRCLE,1.380 IN. DEEP,90 DEG COUNTERSUNK TO 0.800 IN. DIA,3/4 IN. 10 UNC-2B THD SIZE,0.900 IN. THD DEPTH; WITH TWELVE UNTHD HOLES EQUALLY SPACED ON A 15.250 IN. DIA BOLT CIRCLE,0.636 IN. DIA THRU; WITH THREE THD HOLES EQUALLY SPACED ON A 15.250 IN. DIA BOLT CIRCLE,90 DEG COUNTERSUNK TO 0.660 IN. DIA,5/8 IN. 11 UNC-2B THD SIZE FOR JACKING PURPOSES |