3-520410-2 is an Ultra-Fast Plus fully insulated FASTON receptacle designed for secure wire termination in quick-connect applications. This one-piece insulated terminal is engineered for 22-18 AWG wire with an insulation diameter range of 0.060-0.135 inches (1.52-3.43 mm) and accommodates .250 series mating tabs with a thickness of 0.032 inches (0.81 mm). The terminal features a tin-plated brass construction with a nylon housing rated UL 94 V-2 flammability, funnel wire entry for correct lead-in, and a wire stop to prevent over-insertion. Key dimensions include a 0.195 inch (4.95 mm) width, 0.409 inch (10.39 mm) length, and 0.855 inch (21.72 mm) overall height. This terminal is ideal for automotive, appliance, and industrial electrical assemblies where reliable insulated connections and shock hazard prevention are essential.