The GRACO 181251 is a packing nut, typically made from durable metal or alloy, designed to secure and seal packing materials within GRACO equipment. Its primary function is to prevent leakage and maintain proper compression of packing around moving parts such as rods or shafts in pumps and sprayers.

Key Features:

• Packing Nut
• 181251
• Secures and compresses packing to prevent leaks
• Designed for easy installation and maintenance
• Factory warranty may not apply; Radwell 2-year warranty included for some suppliers

Applications:
Used in GRACO pumps and sprayers to maintain seal integrity and prevent fluid leakage around moving components.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and longevity of equipment.
• Tighten the packing nut enough to prevent leakage, but do not overtighten to avoid damage to packing or moving parts.
• Follow manufacturer’s torque specifications if available (e.g., 20–30 ft–lb or 27–47 N.m for similar GRACO parts).
• Regularly check and adjust the packing nut as part of routine maintenance to maintain seal integrity.