The Husqvarna 510186301 External Retaining Ring is a genuine OEM component designed for the FS513, FS520, and FS524 floor saws. As an authentic Husqvarna part, it is manufactured to the exact tolerances required for proper shaft and bearing retention in these machines. DHS Equipment supplies this part to help keep your equipment running at full capacity. Cross-reference part number 510186301 against your parts diagram to confirm fitment before ordering.
Key Features
- Exact OEM Groove Engagement — manufactured to Husqvarna's precise dimensional specs, ensuring the ring seats fully and holds its designed retaining load without slipping or deforming.
- Direct Drop-In Replacement — engineered to match the original external groove profile on FS513, FS520, and FS524 floor saw assemblies, requiring no rework to the shaft or housing.
- Broad FS-Series Compatibility — a single OEM part number covering the FS513, FS520, and FS524 floor saws, simplifying parts sourcing for mixed fleets.
- Restores Secure Component Retention — a correctly installed retaining ring keeps rotating or sliding components locked in axial position, preventing premature wear on adjacent bearings and assemblies.
- Genuine Husqvarna Quality — produced from the same hardened spring steel stock as the original, maintaining the snap force and corrosion resistance expected in a high-vibration floor saw environment.
An external retaining ring is a precision-formed fastener that snaps into a machined groove on the outside of a shaft or pin, creating a positive mechanical stop that prevents mounted components — such as bearings, gears, or pulleys — from moving axially. In a floor saw like the FS513, FS520, or FS524, these rings secure critical drivetrain and blade-arbor components against the constant vibration and lateral forces generated during concrete cutting. When a retaining ring becomes worn, distorted, or dislodged, the components it restrains can shift out of alignment, accelerating bearing wear and potentially causing more extensive damage to the surrounding assembly.
For questions about this part or to verify compatibility with your machine, contact the DHS Equipment team.
Part Details
| Part Number | 510186301 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | External Retaining Ring |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS513 |
| Floor Saw | FS520 |
| Floor Saw | FS524 |
Verify Before You Order
Fitment is machine-number and revision-specific; always confirm your model and serial number against the fitment list.
Why Buy From DHS Equipment
Every part is verified against the manufacturer's part number before it ships, so what you order is what arrives. We carry parts from leading OEM brands and our own DHS Quality Parts line of professional aftermarket components. Need help finding the right part? Our team is available to confirm compatibility whenever you need it. Orders are processed fast to keep your jobs on track. We don't just sell parts. We keep you jobsite ready.
Questions? Contact our team at [email protected] or 866-611-9369 — DHS Equipment is here to help you maintain peak performance.
