GRACO Packing Nut (178618) - (SKU: 178618)The GRACO 178618 is a packing nut, a critical component used to secure and seal the packing material within GRACO fluid handling equipment. Its material is not specified in available listings, but packing nuts are typically made from durable metals such as stainless steel or brass to withstand high pressures and resist corrosion. The intended use is to maintain a tight seal around the pump shaft, preventing leaks and ensuring efficient operation of

Cartridge valve

Regularly inspect switch components for wear or damage

Use recommended air pressure (up to 50 psi for this model)

Reliable construction for repeated use in industrial environments

providing stability and enhancing overall equipment performance

The GRACO 16X452 Q KIT is a genuine repair cylinder kit designed for use in GRACO airless paint sprayers

especially in high-pressure or vibration environments

Reliable pneumatic actuation

The GRACO 160674 is a backup piston seal designed for use in GRACO equipment

and repair operations

Ensure the valve is compatible with your specific GRACO spray gun model before installation

Hand-tighten plug to avoid over-torquing