The Dayton 06-230 is a precision-engineered spindle nut lock washer designed for heavy-duty trailer axles. Built to match the exact fit and function of original equipment, this flat washer features a specialized 5/32" tab to ensure your wheel end assembly remains securely locked, preventing nut migration and ensuring long-term bearing safety.
Direct Replacement: Engineered to match the factory fit and performance of specified Dana, Rockwell, and Spicer trailer axles.
Safety First: Features a integrated 5/32" locking tab designed for tapered spindles, providing a reliable mechanical lock for the wheel end.
Durable Construction: Manufactured from high-quality steel to withstand the vibrations and stresses of commercial hauling.
Expertly Backed: Produced by a brand with over a century of automotive experience and supported by U.S.-based product specialists.
| Attribute | Value |
| Part Number | 06-230 |
| Part Type | Spindle Nut Lock Washer |
| Washer Type | Flat with 5/32" Tab |
| Inner Diameter (ID) | 2.62 in |
| Thickness (Height) | .06 in |
| Spindle Type | Tapered |
| Axle Application | Dana / Rockwell 17,000lb - 22,000lb |
| Weight | .09 lbs |
This washer is a direct interchange for the following industry part numbers:
| Manufacturer | Part Number | Notes |
| Meritor | R002237 | Service Replacement |
| Euclid | E2237 | Aftermarket Interchange |
| Spicer/Dana | 12-394 / 12394 | Direct Replacement |
| Dana | M10HN151 | Direct Replacement |
| Paccar | L1327 | Direct Replacement |
| Standard Forge | 105106 | Direct Interchange |
| VMRS | 011-001-017 | Industry Standard Code |
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