The Accutemp AT0F-3371-1 Griddle Rotary Seal Shaft Nut is a precision fastening component designed to hold the rotary seal assembly in place within compatible griddles. It works by threading onto the shaft, applying consistent pressure to secure the seal and help prevent leaks while allowing smooth rotational movement of internal parts. This helps maintain proper alignment and reduces wear during operation. Its durable construction supports long-term use under high-temperature conditions, contributing to dependable equipment performance, reduced maintenance needs, and consistent operation in commercial cooking environments.