The GRACO 184493 NUT, PACKING is a carbon steel packing nut designed for use in GRACO pumps, specifically for securing and sealing the throat packings in the intake valve assembly. Its primary function is to prevent leaks and maintain proper pressure within the pump system.

Key Features:

• Packing Nut
• Carbon steel
• Compatible with GRACO pump models requiring intake valve packing nuts (e.g., Check-Mate 450, Bulldog® Series A)
• Designed for secure sealing of throat packings
• Supports reliable pump operation
• Ease of maintenance with standard wrench access
• Factory-torqued for immediate use

Applications:
Used in GRACO air-operated double diaphragm pumps and similar equipment for sealing and maintaining pressure integrity at the intake valve.

Installation Notes:

• Using genuine GRACO parts ensures proper fit, performance, and safety, reducing the risk of leaks and equipment failure.
• Before installation, fill the packing nut 1/3 full with GRACO Throat Seal Liquid or compatible solvent.
• Torque the packing nut to 45–53 N·m (33–39 ft-lb) using the supplied wrench.
• Ensure the bleed hole faces down during installation.
• Do not overtighten the packing nut.
• Relieve system pressure before servicing or adjusting the packing nut.