The Husqvarna 503221003 Hexagon Nut is a genuine OEM fastener designed for the K1250, K1260, and 3122K power cutters. As a direct Husqvarna OEM component, this nut is manufactured to the exact dimensions and material grade specified for these machines, ensuring a secure, properly torqued connection every time. This part is a dependable choice for technicians and operators completing service or assembly work on these heavy-duty power cutters. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Husqvarna's exact material and dimensional specifications, delivering the correct thread engagement and torque retention needed in high-vibration cutter applications.
- Drop-In Replacement Fit — Matches the original thread pitch, across-flats dimension, and profile of the factory nut, so it seats and torques correctly without any modification.
- Confirmed Fitment for K-Series Power Cutters — Verified compatible with the K1250, K1260, and 3122K power cutters, giving you confidence before you begin the repair.
- Maintains Structural Integrity — A correctly specified nut holds critical assemblies securely under the sustained load and vibration that power cutters generate during cutting operations.
- Part Number Verification — Cross-reference 503221003 against your machine's parts diagram to confirm the correct application before ordering.
A hexagon nut is a fundamental fastening component used to clamp and secure assemblies throughout a power cutter's structure. It works in conjunction with a bolt or threaded stud to hold components firmly in place, resisting loosening caused by engine vibration and cutting forces. Using a nut with the correct thread specification and material grade is essential — an incorrectly sized or substandard fastener can back off under load, leading to component movement, accelerated wear, or unsafe operating conditions.
Part Details
| Part Number | 503221003 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Hexagon Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Cutter | K1250 |
| Power Cutter | K1260 |
| Power Cutter | 3122K |
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.
