The Husqvarna 503221002 Hexagon Nut is a genuine OEM component designed for the PG820RC and PG680RC floor grinders. Sourced directly from Husqvarna, this fastener meets the exact specifications required for secure assembly and proper machine function. Cross-reference part number 503221002 against your parts diagram to confirm the correct position before installation. DHS Equipment supplies this part to help keep your equipment running at full capacity.
Key Features
- OEM-Grade Fastener Material — Manufactured to Husqvarna's dimensional and torque specifications, ensuring the correct thread engagement and clamping force for the assembly it secures.
- Direct Drop-In Replacement — Matches the original thread pitch, across-flats measurement, and profile so it seats and torques correctly without any modification.
- Confirmed Fitment — Engineered specifically for the PG820RC and PG680RC planetary floor grinders, eliminating guesswork when sourcing hardware for these machines.
- Structural Integrity Maintained — A properly torqued fastener keeps critical assemblies tight under the continuous vibration and load cycles that floor grinders generate, preventing loosening and component wear.
- Genuine Husqvarna OEM Part — Backed by Husqvarna's construction equipment quality standards, so you know the fit and grade are correct the first time.
A hexagon nut is a threaded fastener that works in conjunction with a bolt or stud to clamp and secure machine components together. On planetary floor grinders like the PG820RC and PG680RC, fasteners are subjected to constant vibration and rotational forces, making correct thread engagement and proper torque essential. Using the wrong nut — one with an incorrect thread pitch or hardness grade — can result in stripped threads, assembly loosening, or accelerated wear on adjacent components.
Part Details
| Part Number | 503221002 |
|---|---|
| Brand | Husqvarna |
| Part Type | Genuine OEM |
| Description | Hexagon Nut |
Compatibility & Fitment
| Name | Model |
|---|---|
| Floor Grinder | PG820RC |
| Floor Grinder | PG680RC |
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.
