The Husqvarna 731711851 Hexagon Nut Flange is a genuine OEM fastener component designed for a wide range of Husqvarna construction equipment, including the FS309, FS400LV, FS4600G, FS5000, FS5000D, FS600E, FS7000D, FS7000DL, FS7000DMT, and FS3500G floor saws, the CRT48 power trowel, and the T4000GP. As a genuine OEM part, it is manufactured to the exact tolerances and material specifications Husqvarna requires, ensuring a proper, secure connection wherever it is installed. DHS Equipment supplies this part to help keep your equipment running with confidence. Cross-reference part number 731711851 against your machine's parts diagram to confirm fitment before ordering.
Key Features
- Genuine OEM Fastener Integrity — Manufactured to Husqvarna's exact thread pitch, flange diameter, and material hardness specifications — critical for maintaining secure, load-bearing connections on heavy-use construction equipment.
- Integrated Flange Design — The built-in flange distributes clamping load evenly across the mating surface, reducing the risk of loosening under vibration without requiring an additional washer.
- Broad Equipment Compatibility — Fits multiple Husqvarna floor saw models including the FS400LV, FS5000D, FS7000D, and FS7000DMT, as well as the CRT48 power trowel — verify against part number 731711851 in your parts diagram.
- Vibration Resistance — Floor saws and power trowels generate sustained mechanical vibration during operation; a correctly specified flange nut maintains joint integrity and prevents component migration or failure.
- Direct OEM Replacement — Drops into the same position as the original fastener with no modification, restoring the assembly to its original specification.
A hexagon nut flange is a fastener that combines a standard hex nut with an integrated flanged washer base, creating a wider bearing surface that spreads clamping force and resists loosening caused by vibration. In construction equipment such as floor saws and power trowels — machines that operate under continuous vibration and heavy load — correctly specified flange nuts are essential for keeping assemblies secure and maintaining alignment. A worn, stripped, or incorrect flange nut can lead to joint loosening, component misalignment, or fastener failure during operation, making replacement with the correct OEM part the right call for sustained performance.
Part Details
| Part Number | 731711851 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Hexagon Nut Flange |
Compatibility & Fitment
| Name | Model |
|---|---|
| Power Trowel | CRT48 |
| Dust & Slurry Equipment | T4000GP |
| Floor Saw | FS3500G |
| Floor Saw | FS400LV |
| Floor Saw | FS4600G |
| Floor Saw | FS5000D |
| Floor Saw | FS7000D |
| Floor Saw | FS7000DL |
| Floor Saw | FS309 |
| Floor Saw | FS600E |
| Floor Saw | FS7000DMT |
| Floor Saw | FS5000 |
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.
