The GRACO 381 flat washer is a 5/16" diameter washer, typically made from steel, designed to distribute load and prevent damage to surfaces when used with fasteners in GRACO equipment. Its intended use is to provide a smooth bearing surface and reduce wear between a bolt or nut and the equipment surface.

Key Features:

• Flat washer
• 5/16"
• Steel (material not explicitly specified by GRACO, but industry standard for such washers is steel)
• Compatible with GRACO equipment requiring a 5/16" flat washer
• Distributes load evenly
• Reduces surface wear
• Simple, reliable design

Applications:
Used in assembly and maintenance of GRACO equipment where a 5/16" flat washer is required for load distribution and surface protection.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, function, and longevity of equipment. Non-genuine parts may compromise equipment performance and void warranties.
• Ensure washer is placed between the bolt head/nut and the equipment surface.
• Check for correct size and material before installation.
• Inspect for damage or corrosion before use.
• Follow GRACO equipment manual for specific installation instructions.
• Use only recommended tools and torque settings.
• Regularly inspect washers during maintenance checks.