

SprayTech part 50431 is a retainer ring (5005-31-Z.D.) designed to secure components on shafts or in bores on compatible SprayTech Airless sprayer models. This precision fastener provides positive retention of bearings, gears, and other components while allowing for easy installation and removal. Replacing a worn, distorted, or missing retainer ring ensures components remain securely positioned during operation.
| Part Description | Retainer Ring 5005-31-Z.D. |
|---|---|
| Brand | SprayTech |
| Fits | SprayTech Airless EP2300 SE, EP2300, EP2400, EP2510 |
| Condition | New |
The SprayTech 50431 Retainer Ring (5005-31-Z.D.) is a precision fastener used to secure components such as bearings, gears, and shafts in position on compatible SprayTech Airless sprayer models. It installs into a groove to create a positive shoulder that prevents axial movement of parts.
Retainer rings, also known as snap rings or circlips, are essential for maintaining proper component positioning in rotating and stationary assemblies. They provide a removable shoulder that holds components in place while allowing for disassembly when needed. Available in internal and external configurations, these rings must maintain precise dimensions and spring characteristics to function reliably. The split in the ring allows it to compress for installation into a groove, then expand to create a positive stop.
| Axial location | Prevents unwanted movement along shafts or in bores |
|---|---|
| Removable shoulder | Provides a positive stop that allows disassembly |
| Worn edges | Wear affecting ring retention capability |
|---|---|
| Corrosion | Rust or chemical damage compromising ring integrity |
| Missing ring | Ring lost, components no longer secured |
SprayTech part 50431 is compatible with the following sprayer models. Always confirm fitment using the correct parts diagram for your exact model and serial number.
| SprayTech Airless EP2300 | Retainer Ring 5005-31-Z.D. |
| SprayTech Airless EP2400 | Retainer Ring 5005-31-Z.D. |
| SprayTech Airless EP2510 | Retainer Ring 5005-31-Z.D. |
Retainer ring issues may involve associated components. When servicing the retainer ring, these parts are commonly inspected or replaced at the same time.
Check bearings for wear that may have occurred if the ring was missing.
Inspect the groove for damage or wear.
Inspect gears, pulleys, or other parts the ring secures.