The Husqvarna 593495801 Lock Nut is a genuine OEM fastener designed for a wide range of Husqvarna Construction dust collectors, floor grinders, and surface preparation machines. This lock nut provides a verified fitment solution for equipment including the DC655, DC975, HTCD80, DuratiqT6, DuratiqT8, DuratiqX6, DuratiqX8, DURATIQT6, DURATIQX6, DURATIQX8, HTCT8, HTC500, HTC650, HTC800RXP, HTC800HD, HTC800E, HTC950RX, HTCX8, HTCRX8, HTC80, HTC80iD, Blastrac2-20DT, Blastrac2-30DS, Blastrac1-10DPS75, Blastrac1-15DS, and EBE900V. As a genuine OEM component, it is manufactured to the exact tolerances and specifications Husqvarna requires for safe, dependable assembly. Cross-reference part number 593495801 against your machine's parts diagram to confirm correct placement before ordering. DHS Equipment supplies this part to help keep your equipment operating at full capacity.
Key Features
- Genuine OEM Thread and Dimension Tolerancing — Manufactured to Husqvarna's exact torque and thread specifications, ensuring correct clamping force without stripping or backing out under vibration.
- Direct Drop-In Replacement — This lock nut installs directly into the designated fastener position with no rework, matching the thread pitch, diameter, and locking mechanism of the original hardware.
- Broad Equipment Compatibility — Fits an extensive range of Husqvarna dust collectors and floor grinders, including DC655, DC975, DuratiqT6, DuratiqX8, HTC500, HTC800RXP, HTC950RX, and more.
- Vibration-Resistant Locking Action — The locking feature prevents loosening during heavy-duty grinding, blasting, and dust collection operations, maintaining structural integrity of the assembly over extended use.
- Fastener Integrity for Safety-Critical Assemblies — On surface preparation and dust management equipment, secure fastening is essential to keep guards, panels, and rotating assemblies properly seated during operation.
A lock nut is a self-locking fastener engineered to resist loosening caused by vibration and dynamic loads — conditions that are constant in floor grinding, shot blasting, and dust collection equipment. Unlike a standard nut, it uses a deformed thread section, nylon insert, or similar locking mechanism to maintain clamping tension even as the machine cycles through high-frequency vibration. When a lock nut fails or works loose, it can compromise the integrity of the entire fastened assembly, leading to misalignment, component separation, or equipment shutdown. Replacing a worn or damaged lock nut with the correct OEM part restores the security of the joint and keeps the machine running as designed.
Part Details
| Part Number | 593495801 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Lock Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Dust & Slurry Equipment | DC655 |
| Dust & Slurry Equipment | DC975 |
| Dust & Slurry Equipment | HTCD80 |
| Floor Grinder | DuratiqT6 |
| Floor Grinder | DuratiqT8 |
| Floor Grinder | DuratiqX6 |
| Floor Grinder | DuratiqX8 |
| Floor Grinder | HTCT8 |
| Floor Grinder | HTC500 |
| Shot Blaster | Blastrac2-20DT |
| Shot Blaster | Blastrac2-30DS |
| Steel Blaster | EBE900V |
| Floor Grinder | DURATIQX8 |
| Floor Grinder | HTC800RXP |
| Floor Grinder | DURATIQT6 |
| Floor Grinder | DURATIQX6 |
| Floor Grinder | HTC650 |
| Floor Grinder | HTC800HD |
| Floor Grinder | HTC950RX |
| Floor Grinder | HTCX8 |
| Shot Blaster | Blastrac1-10DPS75 |
| Shot Blaster | Blastrac1-15DS |
| Floor Grinder | HTCRX8 |
| Dust & Slurry Equipment | HTC80 |
| Floor Grinder | HTC800E |
| Floor Grinder | HTC80iD |
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.
