Graco 15C980 Jam Nut

Graco 15C980 Jam Nut Overview

The Graco 15C980 Jam Nut is a genuine OEM locking nut designed to secure critical pump or hose‑connection parts in Graco sprayers. It prevents loosening under vibration and high‑pressure operation.

Key Features

• OEM‑specified jam nut for reliable locking in Graco assemblies
• Threaded design to maintain a secure mechanical joint
• Precision-machined for tight tolerances and correct torque retention
• Resists loosening under repeated use, vibration, or pressure cycling
• Compact size fits within tight pump housing or suction assemblies

Technical Specifications

Applications & Benefits

Using the 15C980 Jam Nut offers important advantages:

• Prevents critical pump or hose connections from loosening during operation.
• Improves system reliability by maintaining tight mechanical joints.
• Helps to maintain consistent fluid flow and pressure by eliminating unwanted movement.
• OEM-grade part ensures compatibility and performance integrity.

Installation & Maintenance

• Ensure the mating threads are clean before installation.
• Thread the 15C980 nut onto the male fitting and hand-tighten first.
• Use proper torque (if specified in your sprayer’s manual) to lock it without damaging the threads.
• Inspect periodically for looseness, especially after high‑vibration use.
• Replace the nut if threads are stripped or if it fails to maintain tightness.

Frequently Asked Questions