The Husqvarna 505422401 Inner Flange is a genuine OEM replacement designed for the FS6600D, FS6800D, FS6600DT, and FS6600DJDT floor saws. As a direct factory-sourced component, this flange delivers the exact dimensional fit and material grade that Husqvarna specifies for these walk-behind flat saws. Cross-reference part number 505422401 against your parts diagram to confirm this is the correct flange for your machine configuration. DHS Equipment supplies this part to help keep your floor saw running at full capacity.
Key Features
- Genuine OEM Dimensional Accuracy — Manufactured to Husqvarna's exact tolerances, ensuring the flange seats correctly against the blade arbor and maintains true blade alignment during cutting passes.
- Direct Bolt-On Replacement — Engineered to match the original mounting interface on these floor saw models, so installation follows the standard service procedure without additional machining or adaptation.
- Broad FS-Series Compatibility — Fits the FS6600D, FS6800D, FS6600DT, and FS6600DJDT floor saws, covering the full range of these heavy-duty walk-behind flat saws.
- Blade Security Under Load — A properly seated inner flange clamps the diamond blade firmly against the outer flange, preventing blade wobble and maintaining a consistent, straight cut even under the high torque demands of concrete and asphalt cutting.
- Operator Safety Through Secure Blade Clamping — A worn or incorrectly fitted inner flange can allow blade movement during operation, creating a serious hazard; replacing it with the correct OEM component restores the clamping integrity the machine was designed to deliver.
The inner flange is a precision-machined clamping component that works in conjunction with the outer flange to secure the cutting blade to the saw's arbor shaft. Together, the two flanges sandwich the blade and transmit rotational force evenly across the blade's mounting surface, keeping it centered and stable during cutting. When the inner flange becomes worn, damaged, or out of specification, blade clamping force is compromised — leading to blade wobble, poor cut quality, and a potential safety risk to the operator.
Part Details
| Part Number | 505422401 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Inner Flange |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS6600D |
| Floor Saw | FS6800D |
| Floor Saw | FS6600DT |
| Floor Saw | FS6600DJDT |
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.
