The GRACO 558691 is an O-ring made from BUNA-N (Nitrile) material with a 90 durometer hardness. It is designed for use as a sealing component within GRACO lubrication and fluid handling equipment, providing reliable sealing against oils, fuels, and other compatible fluids.

Key Features:

• O-ring
• BUNA-N (Nitrile) rubber, 90 durometer
• Compatible with oils, fuels, and other fluids suitable for BUNA-N material
• High reliability for sealing applications
• Resistant to oils, fuels, and many industrial fluids
• Designed for use in GRACO lubrication systems

Applications:
Used as a sealing component in GRACO lubrication and fluid handling equipment, suitable for various industrial and maintenance applications.

Installation Notes:

• Using genuine GRACO O-rings ensures proper fit, performance, and longevity of the equipment, reducing the risk of leaks and downtime.
• Inspect O-ring for damage or defects before installation
• Ensure mating surfaces are clean and free of debris
• Lubricate O-ring with compatible lubricant if recommended by the equipment manual
• Install carefully to avoid pinching or twisting the O-ring