The Husqvarna 539300092 Woodruff Key Number 5 is a genuine OEM component designed for Husqvarna FS413, FS520, FS524, FS513, and PRO65G floor saws, as well as MS510 and MS510G tile and masonry saws. As an OEM part, this Woodruff Key Number 5 is manufactured to Husqvarna's exact specifications, ensuring a correct mechanical fit within the drivetrain. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM Keying Geometry — Manufactured to Husqvarna's exact dimensional tolerances, ensuring the key seats fully and locks shaft-to-hub connections without slop or play.
- Drop-In Shaft Replacement — Sized to match the original keyway profile on Husqvarna floor saw and masonry saw drivetrains, allowing direct installation without modification.
- Broad Husqvarna Fitment — Compatible with the FS413, FS520, FS524, FS513, and PRO65G floor saws, plus MS510 and MS510G tile and masonry saws, covering a wide range of Husqvarna construction equipment.
- Torque Transmission Integrity — A correctly fitted Woodruff Key Number 5 locks rotating components securely, ensuring full and consistent power transfer from the shaft to the driven assembly.
- Verified OEM Part Number — Cross-reference 539300092 against your parts diagram to confirm fitment before ordering — the right key means restored performance from the first cut.
A Woodruff key is a small, semi-circular drive key that sits in a matching keyway cut into a shaft, locking a hub, pulley, or sprocket in rotational alignment with that shaft. It prevents the mounted component from spinning independently under load, ensuring that engine or motor torque is transferred cleanly and completely to the cutting or drive assembly. When a Woodruff key shears or wears, the connected component loses drive — the shaft spins freely while the hub or pulley remains stationary, resulting in lost power transmission and potential secondary damage to the keyway itself. Replacing a worn or damaged key promptly with the correct OEM component restores full drivetrain integrity and prevents further wear to surrounding parts.
Part Details
| Part Number | 539300092 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Woodruff Key Number 5 |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS413 |
| Floor Saw | FS520 |
| Floor Saw | FS524 |
| Tile & Masonry Saw | MS510 |
| Tile & Masonry Saw | MS510G |
| Floor Saw | PRO65G |
| Floor Saw | FS513 |
| Floor Saw | Pro65G |
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.
