In fact it does - 473K means 47 x 1000 which equals the value in picofarads: 47000 pf
We want micro farads which is the range that all guitar caps are. Pico is 10 to the minus 12 and micro is 10 to the minus 6, so move the decimal point 6 places to the left = 0.047uf. This is a normal cap for a...