3-520339-2 is a fully insulated FASTON receptacle terminal designed for secure and reliable quick-connect wire termination. This terminal is part of the Ultra-Fast series featuring one-piece fully insulated construction that helps prevent shock and short hazards. The terminal features tin plated copper alloy construction, funnel wire entry for easy insertion, and a wire stop for proper positioning. It is UL rated at +105°C and meets UL-310 specification for quick connect terminals. Common applications include electrical connections in appliances, HVAC systems, and industrial equipment where reliable, insulated connections are required.