Siemens PLM Femap v10.3.0 with NX Nastran Win32/64 ISO | 2 GB Femap version 10.3 is the latest release of the state-of-the-art finite element modeling pre- and postprocessor for engineering simulation and analysis. Femap works in combination with a wide variety of finite element analysis solvers, including the industry-leading NX Nastran application.