The GRACO 189587 Washer, Back-Up is a small, precision-engineered component designed for use within GRACO spray equipment. Its material is not specified in available sources, but it is intended to serve as a backup or support washer, likely to ensure proper sealing or alignment in fluid handling systems.

Key Features:

• Washer, Back-Up
• Designed for use with GRACO spray equipment
• Compact size (1.2 in x 1.2 in x 1.2 in)
• Lightweight (approx. 0.01–0.10 lbs)
• Precision fit for reliable performance

Applications:
Used as a backup or support washer in GRACO spray equipment to ensure proper sealing, alignment, or support within fluid handling systems.

Installation Notes:

• Using genuine GRACO parts ensures optimal performance, compatibility, and longevity of the equipment.
• Ensure the equipment is depressurized and isolated before installation.
• Clean the installation area to prevent contamination.
• Follow GRACO equipment manual instructions for part replacement.
• Regularly inspect washers for wear or damage.
• Replace washers as part of routine maintenance to prevent leaks or equipment failure.