Compatible Machines & Models
- Graco Mark X ProContractor (Models 16Y910 & 16Y912)
- Graco Mark VII Max / Mark X Max control assemblies
- Graco GMAX 3400, GMAX II 3900 / 5900 / 7900 series
- Other Graco high-output spray and pump assemblies (verify part number 112600 in manual)
Graco 112600 Spring Lock Washer – OEM Fastening Component
The 112600 Spring Lock Washer is a critical OEM component designed to maintain secure fastening in Graco spray and pump assemblies, preventing loosening under vibration and dynamic load.
- OEM part number: 112600
- Prevents bolts/nuts from loosening under pressure or vibration
- High-quality spring steel for durability
- Ensures reliable clamp load in pump and housing assemblies
- Compatible with multiple Graco high-output machines
Technical Overview
This washer is used to secure fasteners in high-performance Graco equipment. Correct installation helps maintain assembly integrity and prevents operational failures due to fastener loosening.
| Material | High-strength spring steel, corrosion-resistant |
| Type | Spring lock washer (split ring) |
| Application | Maintains clamp load for bolts/nuts in pump, housing, and control assemblies |
Installation & Maintenance Tips
- Ensure the bolt/nut and mounting surface are clean before assembly.
- Place washer correctly under the fastener head or nut to maximize locking effect.
- Use only genuine Graco 112600 to maintain correct tension and reliability.
- Inspect periodically for wear or deformation in high-vibration areas.
Frequently Asked Questions
It prevents bolts and nuts from loosening under vibration or high-pressure operation, maintaining assembly integrity in Graco spray and pump equipment.
Compatible with Graco Mark X ProContractor, Mark VII Max, Mark X Max, GMAX 3400, GMAX II 3900/5900/7900 series, and other high-output machines. Always verify part number 112600 in your machine’s parts manual.
Aftermarket washers may not provide the exact spring tension or dimensions needed. Using the genuine Graco 112600 ensures proper fastening and long-term equipment reliability.
