What you're looking at is the D.O.T. brake pad edge code.
AK ACT is the manufacturer.
560H is the formulation.
FF is the co-efficient of friction rating.
It is not a model number or anything, so don't be alarmed that it doesn't match the item number for the pad. It is common for multiple different Akebono pads (by item number) to have that same formulation, I've used some Akebono pads with different item numbers that all had that same formulation (560H).