Part number 51357 is a split lock washer designed to prevent nuts and bolts from loosening due to vibration or dynamic loads in compatible spray equipment. The split action creates tension that resists rotation, maintaining clamping force on critical fasteners. Replacing worn or missing lock washers ensures that assembled components remain securely fastened, reducing the risk of mechanical failure and unsafe operation.
| Part Number | 51357 |
|---|---|
| Part Description | Split Lock Washer |
| Brand | AirCoat / PowrCoat / SprayTech |
| Fits |
|
| Condition | New |
The 51357 Split Lock Washer is a simple yet critical fastener component used in various assemblies on compatible AirCoat, PowrCoat, and SprayTech sprayers. It is installed under the head of a bolt or under a nut to provide spring tension that resists loosening caused by vibration, thermal cycling, or dynamic loads.
Over time, lock washers can lose their temper, become flattened, or corrode, reducing their ability to maintain clamping force. A missing or ineffective lock washer may allow fasteners to back out, leading to component misalignment, fluid leaks, or mechanical failure. Replacing them during service restores the integrity of bolted connections and ensures safe, reliable operation.
| Vibration resistance | Prevents fasteners from loosening under dynamic loads |
|---|---|
| Clamping force maintenance | Provides spring tension to keep bolted joints tight |
| Load distribution | Helps distribute clamping load evenly under the fastener head |
| Flattening / loss of tension | Washer no longer has a visible gap or spring action |
|---|---|
| Corrosion / rust | Heavy corrosion that compromises material integrity |
| Cracking / breakage | Visible cracks or pieces missing |
| During disassembly | Always replace lock washers when servicing bolted joints |
Part number 51357 is compatible with the following equipment models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| Brand / Series | Models |
|---|---|
| AirCoat | 423 |
| PowrCoat | 630 |
| SprayTech Airless Advantage | EPX2455, EPX2555, EP2300 SE, EP2300, EP2400, EP2510, EPX2305 |
Lock washers are typically replaced alongside other fastener hardware. When servicing, these components are commonly inspected or replaced at the same time.
Check threads for damage or stretching; replace if worn.
Used in conjunction with lock washers; inspect for deformation.
Ensure mating surfaces are clean and undamaged for proper clamping.
Copyright © 2024 AlltitanParts.com - All Rights Reserved.
