

The Graco 105332 Lock Nut is a durable OEM fastener engineered for secure, vibration-resistant assembly in Graco sprayers and pump systems.
The Graco 105332 Lock Nut is a precision-manufactured hex locking nut designed to secure shafts, fittings, and internal assemblies within Graco spray equipment. Its secure locking design prevents loosening caused by vibration, pressure cycling, or repetitive motion — ensuring mechanical stability and consistent performance in demanding industrial environments.
As a genuine Graco replacement part, this nut ensures the correct fit, thread accuracy, and material strength needed for high-pressure applications. It is built to match OEM specifications, making it a dependable choice for maintaining the performance and reliability of your Graco systems.
| Thread Specification | M5 × 0.08″ fine thread (hex-style lock nut) |
|---|---|
| Type | Hexagonal lock nut designed for vibration resistance and secure seating |
| Material & Finish | High-strength steel alloy with corrosion-resistant surface finish to enhance durability and lifespan |
| Application Environment | Ideal for use in spray pump assemblies, hose reels, and industrial finishing systems exposed to high mechanical stress |
| OEM Quality | Engineered and manufactured to original Graco standards for precise fit and performance consistency |
• Always inspect mating threads for debris or damage before installation.
• Start the nut by hand to prevent cross-threading, then torque it using a calibrated wrench to the specified OEM value.
• During regular maintenance intervals, check for any signs of wear, corrosion, or loosening and replace the nut as needed.
• For optimal results, apply a small amount of non-reactive lubricant to the threads to reduce friction during assembly.
Using the genuine Graco 105332 Lock Nut helps maintain the integrity and longevity of your spray system, ensuring that each component performs as originally intended.
The Graco 105332 Lock Nut provides a durable and reliable fastening solution that contributes to long-term performance and stability of your Graco spray systems.
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