The GRACO 116866 Ring Backup is a replacement part designed for use in GRACO equipment, specifically as a backup ring. While the material is not explicitly stated in available sources, backup rings in similar GRACO products are typically made from durable materials such as PTFE (polytetrafluoroethylene) or other engineered plastics. Its primary function is to provide support and prevent extrusion of the main sealing element in hydraulic or pneumatic systems, ensuring reliable operation and longevity of the equipment.

Key Features:

• Backup Ring
• 116866
• Designed for use in GRACO equipment; specific models not listed
• Quick and straightforward replacement
• Supports main sealing element
• Enhances equipment reliability and longevity

Applications:
Used in hydraulic or pneumatic systems within GRACO equipment to prevent extrusion and maintain seal integrity.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, compatibility, and safety of the equipment.
• Follow the equipment manual for specific installation instructions
• Ensure the system is depressurized before replacing the backup ring
• Inspect the sealing area for wear or damage before installation
• Use appropriate tools to avoid damaging the backup ring during installation