Graco 15B163 Needle Nut

Graco 15B163 Needle Nut – Product Details & Compatibility

Compatible Machines

The Graco 15B163 Needle Nut is commonly used in Graco texture spray guns and fluid control assemblies.

• Graco TexSpray Gun Model 248091 (non-bleeder) 
• Graco Spray Gun Model 248903 (non-bleeder)
• Other Graco models that include a fluid needle assembly in their parts list (shown in Graco parts manual) 

Product Overview

The Graco 15B163 Needle Nut is a critical OEM component that secures the fluid needle within the spray gun’s needle-guide assembly. It ensures precise control of fluid flow and maintains proper needle alignment during operation.

Key Features

• OEM-grade nut for securing the fluid needle
• Provides stable needle alignment
• Helps prevent leakage around the needle stem
• Durable metal design for long service life

Technical Specifications

Usage Notes

• Tighten the nut with the correct torque to avoid damaging the needle or guide.
• When replacing, inspect the fluid needle and guide for wear or damage.
• Use thread sealant only if specified by Graco’s maintenance instructions.
• During reassembly, ensure the needle moves freely without binding.

Frequently Asked Questions