The Husqvarna 503220401 Nut is a genuine OEM fastener designed for Husqvarna K-series power cutters, including the K7000, K3600, K960, K650, K970, K700, and K650CutnBreak. As a factory-original component, this nut is manufactured to Husqvarna's exact specifications, ensuring correct thread pitch, torque rating, and dimensional fit. DHS Equipment supplies this part to help keep your equipment running at full capability. Before ordering, cross-reference part number 503220401 against your machine's parts diagram to confirm the correct application.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Husqvarna's exact thread and torque specifications, delivering the material strength and dimensional accuracy required for power cutter applications.
- Drop-In Replacement — Engineered to match the original hardware exactly, this nut installs directly without reworking threads or sourcing adapter hardware.
- Broad K-Series Compatibility — Fits the K7000, K3600, K960, K650, K970, K700, and K650CutnBreak power cutters, covering a wide range of Husqvarna's professional cutting lineup.
- Structural Integrity Restored — A correctly torqued, properly fitting nut keeps critical assemblies secure during high-vibration cutting operations, where a worn or incorrect fastener can lead to component loosening and equipment damage.
- Operational Safety — Using the correct OEM fastener in blade guards, blade flanges, or structural assemblies ensures that retention hardware performs as designed under load — critical on any power cutter.
A nut may seem like a simple component, but in a high-vibration power cutter environment, fastener quality and dimensional accuracy matter. The correct nut maintains the clamping force needed to keep assemblies — such as blade flanges, guards, and structural joints — properly secured through demanding cut cycles. A nut with incorrect thread pitch or insufficient material strength can back off under vibration or fail to achieve the required torque, potentially compromising both machine integrity and operator safety. Replacing a worn or damaged fastener with the genuine OEM part restores the assembly to its original specification.
Part Details
| Part Number | 503220401 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K7000 |
| Power Cutter | K3600 |
| Power Cutter | K960 |
| Power Cutter | K650 |
| Power Cutter | K970 |
| Power Cutter | K700 |
| Power Cutter | K650CutnBreak |
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.
