In this study an effort has been made for the plasma ion nitriding (PIN) of inconel 690 alloy. After plasma nitriding, samples were investigated by various characterization techniques such as; micro-hardness measurement, X-ray diffraction analysis and pin on disk wear test. It was found that, surface micro-hardness increases slowly up to the process temperature ∼400 °C. Beyond this temperature surface micro-hardness increases rapidly. The maximum surface micro-hardness ∼417 HV0.025 was observed in inconel 690 alloy. A mix peak of epsilon (e) phase with fcc (γ) phase was detected for all temperature range (350 °C to 450 °C), while the chromium nitride (CrN) phase was detected at elevated temperature range ∼450 °C. Pin on disk wear test was performed in dry condition at room temperature. It was found that volume loss and wear rate decreases after plasma nitriding. After wear test wear scar path were analyzed by scanning electron microscope (SEM).