In this paper, the structural properties of transparent nylon samples were studied using XRD analysis. Four samples were examined at different preparation temperatures: 130 °C, 150 °C, 170 °C, and 190 °C. The crystallite size was calculated using two methods: Williamson-Hall and Halder-Wagner. Amplitude (FWHM): 150 °C, (FWHM) was 0.26639 radians, indicating a larger amplitude. This shows the low content of impurities in the sample and the high degree of crystalline order. In the insulation properties test, there is a direct relationship between capacitance and temperature, while resistance and impedance exhibit nonlinear behavior and fluctuating values, but the relationship between inductance and temperature is inverse.