The Husqvarna 505630401 Nut is a genuine OEM replacement component designed for a range of Husqvarna Construction masonry saws, floor saws, and early-entry saws, including the MS510, MS510G, MS610, FS3500E, FS4600G, SoffCut2500, and SoffCut5000. As a factory-original part, this nut is manufactured to Husqvarna's exact specifications, ensuring a correct and secure fit wherever it is used in the assembly. DHS Equipment supplies this part to help keep your equipment running and your work on schedule. Cross-reference part number 505630401 against your machine's parts diagram to confirm placement before ordering.
Key Features
- Genuine OEM Construction — manufactured to Husqvarna's exact material and dimensional specifications, delivering the thread engagement and holding strength the original assembly requires.
- Direct Assembly Fit — engineered to match the original fastener profile, seating correctly without modification across all compatible machines.
- Broad Husqvarna Compatibility — fits MS510, MS510G, MS610 tile and masonry saws, FS3500E and FS4600G floor saws, and SoffCut2500 and SoffCut5000 early-entry saws.
- Structural Integrity Restored — a correctly fitted nut maintains proper clamping force throughout the assembly, preventing loosening, misalignment, and accelerated wear on surrounding components.
- Verified Part Number — ordering by Husqvarna article number this part ensures you receive the correct fastener for your specific machine configuration.
A nut is a fundamental fastening component that works in conjunction with a bolt or threaded stud to clamp and secure machine assemblies. In construction equipment such as floor saws, masonry saws, and early-entry saws, fasteners like this one hold critical structural and operational components in proper alignment under the vibration and load that daily cutting work generates. When a nut becomes stripped, corroded, or lost, the affected assembly can loosen progressively, leading to misalignment, component damage, or unsafe operating conditions — making prompt replacement with the correct OEM part essential.
Part Details
| Part Number | 505630401 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Tile & Masonry Saw | MS510 |
| Early Entry Saw | SoffCut2500 |
| Floor Saw | FS3500E |
| Floor Saw | FS4600G |
| Tile & Masonry Saw | MS610 |
| Early Entry Saw | SoffCut5000 |
| Tile & Masonry Saw | MS510G |
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.
