MRC:
A recording of the physical,functional,and performance characteristics for an item of supply.TEXT
General Description:
Copper-nickel, mil-c-20159, type 1; 21.000 in. W base, 21.500 in. Diameter 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. Diameter bolt circle, 1.380 in. Deep, 90 degrees 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. Diameter bolt circle, 0.636 in. Diameter thru; with three thd holes equally spaced on a 15.250 in. Diameter bolt circle, 90 degrees countersunk to 0.660 in. Dia, 5/8 in. 11 unc-2b thd size for jacking purposes