Graco C38163 External Tooth Lock Washer – OEM Fastening Security Component for Spray Equipment
Compatible Machines
- Graco Airless Paint Sprayers (frame, pump, and housing fastener assemblies)
- Graco Industrial Coating Systems requiring vibration-resistant fastening components
- Graco Fluid Handling Equipment using OEM screw and washer locking systems
- Graco OEM Repair Kits where C38163 is specified for assembly retention
Compatibility depends on equipment design. The C38163 External Tooth Lock Washer is used in select Graco assemblies requiring secure vibration-resistant fastening.
What is Graco C38163 Washer, Lock, Ext. Tooth?
The C38163 External Tooth Lock Washer is a genuine Graco OEM fastening component designed to prevent loosening of screws and bolts by increasing friction between the fastener and mounting surface.
Its external tooth design grips the mating surface, helping maintain secure mechanical connections in high-vibration spray and fluid handling equipment.
Primary Role in Equipment Assembly
This lock washer enhances fastening stability by resisting rotational loosening caused by vibration, pressure cycling, and mechanical movement.
- Prevents loosening of screws and bolts
- Improves vibration resistance in assemblies
- Enhances fastening reliability under load
- Ensures secure OEM equipment assembly integrity
Frequently Asked Questions
It prevents fasteners from loosening by increasing friction and grip between the bolt and mounting surface.
It is used in Graco spray equipment, pump assemblies, and industrial systems as part of OEM fastening hardware.
No. It is a model-specific OEM washer and must match the exact assembly requirements listed in Graco documentation.
They improve fastening security by biting into surfaces, reducing the risk of loosening caused by vibration and pressure.
