GRACO Hex Screw - (SKU: 603900)The GRACO 603900 is a hex screw, typically used as a fastening component within various GRACO equipment assemblies. Its material is not specified in available public listings, but it is likely made from a durable metal such as steel for strength and corrosion resistance. Its intended use is to securely join parts together in GRACO machinery. Key Features: Hex screw Compatible with GRACO equipment requiring this specific screw; consult manual for exact

Use only compatible fluids as specified by GRACO

Carbon steel lower

Follow manufacturer instructions for connecting and priming the spray gun

Ensure the system is depressurized before removing or installing the drain hose

Replace fuses with identical specifications

diaphragm pump assemblies

Balanced air motor for consistent spray pattern

Follow the Husky 2150 pump manual for detailed installation instructions

Keep connections clean and secure to prevent leaks

Ensure tubing ends are properly flared before installation

Refer to the manual for specific pump/reservoir combinations and compatibility

It features side fluid ports for fluid delivery and a fan adjustment valve for spray pattern control