The Honda 94050-05080 Flange Nut (5MM) is a genuine OEM fastener used across a wide range of Honda engines, inverter generators, tillers, lawn mowers, snow blowers, tractors, and water pumps — including EU2200, EU2000, GX640, and many more. As a Honda-sourced component, this nut matches the exact dimensions, thread pitch, and flange geometry specified for each application it covers. Honda supersedes parts across serial number breaks, so confirming part number 94050-05080 against the fitment table before ordering is the best way to ensure the right part reaches you.
Key Features
- Genuine OEM Hardware — sourced directly from Honda, this flange nut meets the original thread pitch and flange diameter specified for each application, so there is no guesswork on fit or torque retention.
- Integrated Flange Design — the built-in flange distributes clamping load across a wider bearing surface than a standard nut, reducing the chance of fastener loosening under vibration.
- Broad Compatibility — listed for Honda inverter generators including the EU1000, EU2000, EU2200, EU3200, and EU7000; the EX700 and EX800; the G100 and GX640 engines; the F200 tiller; HR17 lawn mower; HS1336 and HSM1336 two-stage snow blowers; H5013, H5518, RT5000, and H6522 tractors; HT3810, HT3813, and HT4213 lawn tractors; and WA15 and WB15 water pumps.
- Serial Number Verification Recommended — Honda updates fastener specifications at production serial breaks, so always check your machine's serial number against the fitment table to confirm this is the correct nut for your unit.
A flange nut is a standard hex nut with an integral wide-diameter flange formed on one face. The flange acts like a built-in washer, spreading the clamping force over a larger area of the mating surface and helping the fastener resist loosening from vibration — a common operating condition across generators, engines, and outdoor power equipment. When a flange nut is worn, stripped, or missing, the joint it secures can work loose, leading to misalignment, noise, or component damage. Replacing a damaged fastener with the correct Honda OEM part restores the joint to its original clamping specification.
Part Details
| Part Number | 94050-05080 |
|---|---|
| Brand | Honda |
| Part Type | Genuine OEM |
| Description | Flange Nut (5MM) |
Compatibility & Fitment
| Name | Models | Serial Range |
|---|---|---|
| Compact Tractor | H6522 | All |
| Generator | EX800 | All |
| Horizontal Shaft Engine | G100 | 3104276-9999999 |
| Horizontal Shaft Engine | GX640 | All |
| Inverter Generator | EB2000, EB2200, EU1000, EU2000, EU2200, EU3200, EU7000, EX700 | All |
| Lawn Mower | HR17 | All |
| Lawn Tractor | HT3810, HT3813, HT4213 | All |
| Multi-Purpose Tractor | H5013, H5518, RT5000 | All |
| Tiller | F200 | All |
| Two-Stage Snow Blower | HS1336, HSM1336 | All |
| Water Pump | WA15, WB15 | All |
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.
