The Husqvarna 593521901 Locking Spring 180 Mm Disc is a genuine OEM component designed for the HTC420 floor grinder. As a factory-original part, it is engineered to the exact spring tension and dimensional specifications required for secure disc retention on this machine. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- Genuine OEM Spring Tension — manufactured to Husqvarna's exact load and deflection specifications, ensuring the disc is held with the correct clamping force — neither too loose nor over-stressed.
- Exact-Profile Replacement — matches the original geometry so it seats and engages the disc retention system the same way as the factory-installed component, with no modification to the tool or mount.
- Confirmed HTC420 Compatibility — sourced specifically for the HTC420 floor grinder; cross-reference part number 593521901 against your parts diagram to verify fitment before ordering.
- Secure Disc Retention — a correctly functioning locking spring keeps the 180 mm disc firmly locked during operation, preventing unwanted disc movement that can compromise surface finish and operator control.
- Operational Safety — a worn or fatigued locking spring can allow disc loosening under load; replacing it with a genuine OEM part restores the retention integrity the machine was designed to deliver.
The locking spring secures the grinding disc to the head of the floor grinder, maintaining firm engagement between the disc and its mounting interface during operation. When the spring loses tension or deforms through wear, the disc can shift or fail to seat correctly, leading to uneven grinding results and a potential loss of control. Replacing this component with the correct OEM part restores proper disc retention and ensures the HTC420 performs as intended.
Part Details
| Part Number | 593521901 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Locking Spring 180 Mm Disc |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | HTC420 |
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.
