The Husqvarna 593505401 Parallel Key is a genuine OEM component designed for the HTC1500 floor grinder, BS110 and BS75 floor scrapers, and BMC335 floor shaver. As a direct Husqvarna OEM part, it meets the exact dimensional and material specifications required for proper shaft-to-hub engagement on these machines. This parallel key ensures the drive connection performs as engineered, maintaining accurate torque transfer across the drivetrain. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Husqvarna's exact tolerances, ensuring the key seats flush and square in the keyway without binding or play that could accelerate wear on mating components.
- Drop-In Shaft Replacement — Matches the original keyway geometry on the HTC1500, BS110, BS75, and BMC335 exactly, so the part installs directly without filing or shimming.
- Broad Compatibility Across Surface Prep Equipment — A single OEM part that crosses multiple machine classes, covering floor grinders, floor scrapers, and floor shavers from Husqvarna's surface preparation lineup.
- Restored Drive Integrity — A worn or sheared key allows the hub to slip on the shaft, causing lost power transmission and potential damage to surrounding components; replacing it restores a solid, locked drive connection.
- Verified Part Number Cross-Reference — Cross-reference 593505401 against your machine's parts diagram to confirm the correct key for your specific model before installation.
A parallel key is a small but critical drivetrain component that locks a rotating shaft to a hub, gear, or pulley so that torque is transferred without slippage. It sits in a precisely machined slot — the keyway — cut into both the shaft and the mating component, creating a positive mechanical connection between the two. When a parallel key shears or wears down, the hub can spin freely on the shaft, causing a sudden loss of drive to the working tool head and often damaging the keyway itself if left unaddressed. Replacing a failed key promptly with the correct OEM part restores full drivetrain engagement and protects the surrounding shaft and hub from further wear.
Part Details
| Part Number | 593505401 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Parallel Key |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | HTC1500 |
| Floor Scraper | BS110 |
| Floor Scraper | BS75 |
| Floor Shaver | BMC335 |
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.
