The GRACO 555674 is a replacement O-ring made from BUNA-N (Nitrile) material with a 90 durometer hardness. It is designed for use in GRACO equipment to provide a reliable seal in fluid handling systems, preventing leaks and ensuring efficient operation.

Key Features:

• O-ring
• BUNA-N (Nitrile) rubber, 90 durometer
• High reliability and durability
• Resistant to oils, fuels, and many chemicals
• Suitable for dynamic and static sealing applications
• Easy to replace during maintenance

Applications:
Used in GRACO fluid handling and lubrication equipment to maintain seal integrity and prevent leaks in pumps, valves, and other components.

Installation Notes:

• Using genuine GRACO O-rings ensures proper fit, performance, and longevity of equipment, reducing the risk of leaks and downtime.
• Inspect O-ring for damage before installation
• Lubricate O-ring with compatible lubricant if recommended
• Ensure mating surfaces are clean and free of debris
• Replace O-rings during routine maintenance or when leaks are detected