"31N6-15010" and "31N6-17010" are part numbers used by Nissan for various components, but without additional context, it is difficult to determine the specific components to which these part numbers refer.
"K3V112DP-119R-9S09-D" is a model number for a hydraulic pump produced by Kawasaki. Here is a basic specification for this model:
Displacement: 112 cc/rev
Max. pressure: 34.3 MPa
Max. speed: 2,600 rpm
Weight: 92 kg (without oil)
"K3V112D" is also a model number for a hydraulic pump produced by Kawasaki. However, without the full model code, it is difficult to provide a specific specification for this model.
Overall, it seems like the codes you provided are part numbers and model numbers for various components, but without additional information or context, it is difficult to provide more specific information or details.