Graco 16p303 O-ring Packing Seal

Product Description

The GRACO 16p303 is an O-ring packing seal designed as a replacement wear component for Graco fluid-handling and spray equipment. O-ring packings serve as the primary sealing element in pump assemblies, preventing fluid bypass and maintaining system pressure integrity during operation. This part is a standard service item replaced during routine maintenance or when leakage at a packing gland is observed. Technicians servicing Graco airless sprayers, plural-component systems, or fluid transfer pumps will encounter this part as part of a standard repack or seal kit procedure.

This O-ring packing is appropriate for use in professional spray finishing and fluid transfer applications where maintaining a reliable seal is critical to equipment performance. It is installed by painting contractors, fluid system technicians, and equipment service shops performing preventive maintenance or corrective service on Graco pump assemblies.

Key Features

• OEM Graco replacement packing seal for accurate fitment
• Functions as the sealing element at pump packing glands to prevent fluid leakage
• Standard service item suited for routine repack procedures
• Direct replacement supports restoration of original pump pressure integrity

Compatibility

Designed as an OEM-style replacement packing seal for Graco fluid-handling and spray equipment pump assemblies. Confirm fitment against the specific equipment model and parts diagram before ordering.

Installation Notes

Installation should be performed by a qualified technician familiar with Graco pump service procedures. Before servicing, relieve all fluid pressure from the system and disconnect the power source per the equipment service manual. Inspect the packing gland and surrounding components for wear before installing the new O-ring. Follow the manufacturer's assembly sequence to avoid damaging the seal during installation.

Technical Specifications

• Part Type: O-Ring Packing Seal

Standard Information

• Brand: GRACO
• Manufacturer Part Number: 16p303