GRACO Part 198316 – Accessory Retaining Nut (for Auto-Plus Valve, extrusion tip adapter)

Keep your Graco dispensing system running reliably with the genuine GRACO 198316 retaining nut. This precision nut is designed as an OEM accessory for Graco’s Auto-Plus valves, allowing the valve to mount and secure extrusion tips properly.

Key Features & Benefits

• OEM compatibility — manufactured to Graco’s original specifications to ensure perfect fit and function

• Extrusion tip adaptation — lets your Auto-Plus valve accept extrusion-style tips, expanding its versatility

• Secure and leak-resistant — acts as a retaining nut that holds the tip in position and helps maintain fluid integrity under pressure

• Durable construction — built with materials suited for industrial sealant, adhesive, and fluid handling environments

Technical Info / Specifications

• Function: Accessory nut / retaining nut for Auto-Plus valve

• Port / thread compatibility: NPT threads (as a nut / retainer)

• Application: Use in fluid/dispensing systems with extrusion tip requirements

When To Use It

If you are converting or outfitting an Auto-Plus valve to handle extrusion tips (rather than just spray or streaming tips), the 198316 is the component that properly retains the tip assembly. It’s especially important in setups where you switch between different tip types and need reliable performance without leaks or misalignment.