The Husqvarna 732251871 Hexagon Locking Nut is a genuine OEM fastener designed for the FS513, FS520, and FS524 floor saws. As a direct Husqvarna OEM component, this locking nut is manufactured to the exact thread profile, hardness, and locking torque specification required by these machines — no guesswork on fitment. This nut is confirmed compatible across the FS513, FS520, and FS524 floor saw platforms, making it a straightforward, like-for-like replacement. DHS Equipment supplies this part to help keep your equipment performing at full capacity.
Key Features
- OEM Thread and Torque Specification — manufactured to Husqvarna's exact thread pitch and locking resistance spec, ensuring the nut seats, clamps, and holds exactly as the original did
- Drop-In Fastener Replacement — matches the original hexagon profile and locking geometry, so installation requires only standard tooling with no rework to adjacent components
- Confirmed Fitment for FS513, FS520, and FS524 — verified for these Husqvarna floor saw models; cross-reference 732251871 against your parts diagram before ordering to confirm your specific assembly point
- Secure Clamping Under Vibration — the locking feature resists loosening during the sustained vibration and load cycles typical of walk-behind floor saw operation, maintaining joint integrity throughout the cut
- Genuine Husqvarna OEM Part — sourced directly from Husqvarna's construction equipment parts program, carrying the same material grade and dimensional tolerances as the nut originally fitted at the factory
A hexagon locking nut is a critical fastener used throughout floor saw assemblies to secure components that are subject to constant vibration and operational stress. Unlike a standard hex nut, a locking nut incorporates a friction or deformation feature — such as a nylon insert or a distorted thread section — that resists self-loosening under dynamic load. When a locking nut wears, strips, or is replaced with an incorrect fastener, the joint it secures can work loose during operation, leading to misalignment, component damage, or unsafe machine behavior. Using the correct OEM replacement ensures the joint holds to the designed clamping load for the life of the service interval.
Part Details
| Part Number | 732251871 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Hexagon Locking Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Saw | FS513 |
| Floor Saw | FS520 |
| Floor Saw | FS524 |
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.
