2-320572-4 is a pre-insulated ring tongue terminal designed for electrical wire connections with M5 stud mounting. The terminal features a copper body with tin plating per ASTM B-545, a nickel or tin-plated metallic sleeve, and red/white nylon insulation rated for wire sizes 0.56–1.10 mm. Key dimensional specifications include a width (W) of 16.91 mm, contact diameter (C) of 4.17 mm, and maximum lengths (E and L) of 22.94 mm and 28.96 mm respectively. This terminal meets Military Specification M7928/1 and M7929/1 Class 1 & 2 requirements, making it suitable for aerospace, automotive, and industrial applications requiring reliable, insulated wire terminations with consistent electrical performance.