52963-4 is a spring spade short terminal with Plasti-Grip insulation designed for secure wire connections in electrical applications. This terminal accommodates 12-10 AWG solid or stranded wire and features a brass body per ASTM B36 with a yellow PVC sleeve for insulation protection. The terminal has a length of 29.44 mm (1.159 inches) and a width of 23.77 mm (0.936 inches), with wire insulation diameter range of 6.35-7.62 mm (0.250-0.300 inches). It is rated for 600V maximum operating voltage and supports a circular mil area of 2.62-6.64 mm² (5.180-13.100), with tin plating per ASTM B545 for enhanced corrosion resistance. This terminal is commonly used in electrical panels, appliances, and industrial equipment where reliable spade connections are required.