The GRACO 15H304 is a hollow hex fitting plug designed for use in GRACO fluid handling equipment. It is typically used to seal or plug ports in hydraulic or fluid transfer systems, ensuring secure and leak-free connections. The material is not specified in available sources, but it is likely made from durable metal for industrial applications. Key Features: Fitting, Plug 9/16 SAE Hollow hex Designed for use with GRACO fluid handling equipment Hollow hex design for easy installation and removal Durable construction for reliable sealing Standard SAE thread for compatibility with industry fittings Applications:Used to seal or plug ports in hydraulic and fluid transfer systems within GRACO equipment, commonly found in industrial, agricultural, and maintenance applications. Installation Notes: Using genuine GRACO parts ensures proper fit, performance, and safety in fluid handling systems. Ensure threads are clean and undamaged before installation Use appropriate tools to tighten the hollow hex fitting to avoid stripping Inspect for leaks after installation Regularly check for signs of wear or corrosion Replace if damaged or if leaks are detected