This article deals with the analysis of selected structural components of the HSS powder metallurgy steel ASP 2017 and ASP 2055 by quasi-static nanoindentation analysis. The microstructure and nanomechanical properties (reduced modulus of elasticity, nanohardness) of base material are analysed. The selected structural components based on the analysis of microstructure were investigated by the nanoindentation. The purpose was to describe basic condition of the structure and local nanomechanical properties of tested materials. Obtained results will serve as basic values for comparing the properties of modified states of those steels. Triboindenter Hysitron TI950 Triboindenter was used for research by using nanoindentation and built-in microscopy. Indentation tip with Berkovich geometry eas used for the experiment. The measured data were then analysed and evaluated by the Triboscan evaluation software.