If you mean by 'Min Man Spd' that which is displayed by the amber band on the speed tape (B737NG) then that is 1.3-1.4g. Pull that g at that speed and you will be at Stick Shaker, independent of configuration. The green F number is the normal manoeuvre speed for the configuration. It guarantees upto 40 degrees of bank. (1.4g) It also includes a 20kt buffer to the amber band. This is to protect against those not monitoring the flap gauge and slowing to a lower F number without the flaps having moved; thus being 20kts below the F number. Hopefully that mistake is not repeated but noticed and corrected.
All the above is my understanding, but I might need to 'ask a friend' if the answer is critical.