The Husqvarna 539976978 Nut is a genuine OEM fastener designed for a wide range of Husqvarna construction equipment, including floor saws, power packs, tile and masonry saws, power trowels, and dust and slurry equipment. As an authentic Husqvarna OEM component, this nut is manufactured to the exact dimensions and material specifications required for secure, proper assembly across every compatible machine. This part fits models including the FS3500G, FS5000D, FS7000DL, PP2525DS, PP3030, CRT48, MS355, MS510, MS610, SoffCut5000, and S22B, among others — cross-reference part number 539976978 against your parts diagram to confirm the correct application. DHS Equipment supplies this part to help keep your equipment running with confidence.
Key Features
- Genuine OEM Fastener Grade — Manufactured to Husqvarna's exact dimensional and material tolerances, ensuring correct thread engagement, clamping force, and corrosion resistance for heavy-duty construction use.
- Direct Assembly Fit — Threads and dimensions match the original hardware specification, so this nut installs directly into your machine without reworking mating components.
- Broad Multi-Family Fitment — Compatible across Husqvarna floor saws, power packs, tile and masonry saws, power trowels, early entry saws, and dust and slurry equipment, making it a versatile OEM fastener for mixed fleets.
- Structural Integrity Maintained — A correctly torqued, correctly specified nut keeps critical assemblies secure under the vibration and load cycles typical of concrete cutting, sawing, and compaction operations.
- Verified Husqvarna Part Number — Sourced directly from Husqvarna's OEM parts program; always confirm part number 539976978 against your machine's parts diagram before ordering to ensure the right fit.
A nut is a threaded fastener that works in conjunction with a bolt or stud to clamp and secure machine assemblies. In construction equipment operating under continuous vibration and mechanical stress, an under-spec or worn fastener can allow critical joints to loosen, leading to misalignment, premature component wear, or unsafe operating conditions. Using the correct OEM-specified nut ensures the joint achieves the designed clamping load and maintains it throughout the service interval.
Part Details
| Part Number | 539976978 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Trowel | CRT48 |
| Power Pack | PP2525DS |
| Power Pack | PP3030 |
| Floor Saw | FS3500G |
| Floor Saw | FS4600G |
| Floor Saw | FS5000D |
| Floor Saw | FS6600D |
| Floor Saw | FS6800D |
| Floor Saw | FS7000DL |
| Floor Saw | FS7000DMT |
| Tile & Masonry Saw | MS355 |
| Tile & Masonry Saw | MS355G |
| Tile & Masonry Saw | MS510 |
| Early Entry Saw | SoffCut5000 |
| Tile & Masonry Saw | MS510G |
| Dust & Slurry Equipment | S22B |
| Dust & Slurry Equipment | S22H |
| Floor Saw | PRO65G |
| Floor Saw | RS8500D |
| Floor Saw | Pro65G |
| Floor Saw | FS3500E |
| Tile & Masonry Saw | MS610 |
| Power Pack | PP2525DTR |
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.
