kcmil

One thousand circular-mils (see Circular-Mil)
Found on http://www.youngco.com/young2.asp?ID=4&Type=3

kcmil

a symbol for 1000 circular mils, a unit of area equal to about 0.5067 square millimeter commonly used in stating wire gauges.
Found on http://www.unc.edu/~rowlett/units/dictK.html
No exact match found