The GRACO 555642 is a lock washer designed for use with 5/8-inch bolts. It is typically made from hardened steel and is intended to prevent fasteners from loosening due to vibration or movement within GRACO industrial equipment.

Key Features:

• Lock Washer
• 5/8-inch
• Hardened steel (assumed, based on industry standard for lock washers of this type)
• Designed for use with 5/8-inch bolts in GRACO industrial equipment
• Provides marginal resistance to vibration loosening
• Ideal for applications where fasteners have a tendency to rotate or lose friction
• Standardized for industrial use

Applications:
Used in the assembly and maintenance of GRACO industrial equipment, particularly where vibration resistance is required for fasteners.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and reliability within GRACO equipment.
• Place the lock washer between the nut and the surface or between the nut and a flat washer
• Tighten the nut to the recommended torque for the application
• Inspect for wear or deformation during routine maintenance
• Use only with compatible bolt sizes
• Replace if damaged or deformed
• Follow GRACO equipment manual for specific installation instructions