The Husqvarna 522669501 Lock Nut is a genuine OEM fastener designed for DXR series demolition robots, including the DXR95, DXR140, DXR145, DXR250, DXR270, DXR275, DXR300, DXR305, DXR310, DXR315, and more. As a direct OEM replacement, this Lock Nut is manufactured to Husqvarna's exact specifications, ensuring correct torque retention and a secure connection in the assembly it serves. Cross-reference part number 522669501 against your parts diagram to confirm the correct fitment position before ordering. DHS Equipment supplies this genuine OEM component to help keep your demolition equipment operating at full capacity.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Husqvarna's exact thread pitch and hardness specifications, ensuring proper clamp load and torque retention — critical in high-vibration demolition robot applications.
- Locking Mechanism Integrity — The prevailing-torque design resists loosening under the sustained vibration and load cycles that DXR demolition robots generate during heavy-duty breaking and demolition work.
- Broad DXR Series Compatibility — Fits a wide range of DXR demolition robots, including the DXR95, DXR140, DXR145, DXR250, DXR270, DXR275, DXR300, DXR305, DXR310, and DXR315.
- Direct OEM Replacement — Replaces the original Lock Nut with no modification to surrounding hardware, preserving the structural integrity of the assembly.
- Structural Connection Assurance — A failed or missing lock nut on a demolition robot can allow critical fastened joints to work loose under load, leading to component misalignment or mechanical failure during operation.
A lock nut is a self-retaining fastener engineered to resist vibration-induced loosening — a property that is essential on demolition robots like the DXR series, which operate under constant high-frequency impact forces. Unlike a standard nut, the locking feature maintains thread engagement even as the surrounding assembly flexes and absorbs shock loads. When a lock nut fails, stretches, or is missing from a fastened joint, the connection can work loose progressively, compromising the alignment and safety of the attached components and potentially causing accelerated wear or unplanned downtime on the machine.
Part Details
| Part Number | 522669501 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Lock Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Demolition Equipment | DXR140 |
| Demolition Equipment | DXR250 |
| Demolition Equipment | DXR270 |
| Demolition Equipment | DXR300 |
| Demolition Equipment | DXR310 |
| Demolition Equipment | DXR145 |
| Demolition Equipment | DXR305 |
| Demolition Equipment | DXR275 |
| Demolition Equipment | DXR315 |
| Demolition Equipment | DXR95 |
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.
