The GRACO 100639 is a lock washer, a small but essential hardware component used to secure fasteners and prevent loosening due to vibration or movement within GRACO equipment. Its material is not specified in available documentation, but lock washers are typically made from steel or stainless steel. Its intended use is to maintain the integrity of bolted connections in GRACO sprayers and related equipment.

Key Features:

• Lock washer
• Compatible with GRACO sprayers and equipment where specified in parts lists
• Prevents fastener loosening due to vibration
• Simple, reliable design
• Easy to install and replace

Applications:
Used in the assembly and maintenance of GRACO sprayers and related equipment to secure fasteners and ensure operational safety and reliability.

Installation Notes:

• Using genuine GRACO lock washers ensures proper fit, performance, and safety within GRACO equipment.
• Always use the correct size and type of lock washer as specified in the equipment manual.
• Install the lock washer between the nut and the surface to be secured.
• Tighten fasteners to the recommended torque to ensure effective locking.
• Inspect lock washers during routine maintenance and replace if damaged or worn.