The GRACO 190924 is a piston washer designed for use within GRACO industrial equipment, specifically as a component in piston assemblies. Its material is not specified in available documentation, but it is intended to provide a secure fit and reduce wear between moving parts in high-pressure pump systems. Key Features: Washer, Piston SKU:. 190924 Compatible with select GRACO Fire-Ball and other industrial pump models (e.g., referenced in Fire-Ball 425 parts listings) Designed for durability and reliability in high-pressure environments Eases maintenance by providing a replaceable wear surface Supports smooth piston operation and reduces metal-to-metal contact Applications:Used in GRACO industrial pumps and spray systems, particularly in applications requiring robust, long-lasting piston assemblies such as lubrication, paint, and fluid transfer systems. Installation Notes: Using genuine GRACO parts ensures optimal performance, safety, and longevity of equipment. Non-genuine parts may compromise system integrity and void warranties. Always refer to the specific equipment manual for installation instructions Ensure the pump is depressurized and isolated before disassembly Inspect the piston and cylinder for wear or damage before installing the new washer Use appropriate tools and follow torque specifications if provided Replace all related seals and gaskets as recommended during maintenance