Graco 15A817 Sensor Nut

Graco 15A817 Sensor Nut – Product Overview

Compatible Systems

Product Description

The Graco 15A817 Sensor Nut is a specialized fastening component designed to securely hold a sensor assembly in place within Graco fluid‑mix, proportioning, or pump control systems.

Positioned between the sensor body and the mounting plate or manifold block, this nut ensures proper mechanical retention, accurate sensor alignment, and a reliable electrical and fluid interface. Its design supports systems where vibration, pressure, and frequent maintenance are factors, helping maintain integrity of the sensor installation.

Key Features

• Designed specifically for sensor assemblies in Graco proportioning and control systems
• Threaded to match 1/8″ NPT (or equivalent) sensor interface for secure mount
• Durable metal construction to withstand system vibration and repeated servicing
• Ensures proper sealing and alignment of the sensor element within the control module
• Enables quick removal and re‑installation of sensors during maintenance or calibration

Technical Specifications

Installation & Maintenance Tips

• Depressurize or shut down sensor circuit before loosening the nut.
• Ensure the sensor body is fully seated before installing the 15A817 nut for optimal alignment.
• Use correct torque value (as specified for the sensor assembly) to avoid overtightening and damaging threads or sensor housing.
• Inspect the nut periodically for signs of galling, wear or corrosion—replace if thread integrity or function is compromised.
• During sensor removal, ensure no damage to the mounting surface or sensor probe threads for proper re‑installation.

Frequently Asked Questions