A Rational 1208.016 Lock Washer grips fastened parts to resist loosening and keep assemblies stable during regular use.
The lock washer secures threaded fasteners in combination ovens and steamers by biting into the mating surfaces and resisting loosening from vibration, movement and repeated operation. Its external tooth design matters because it creates a stronger gripping action and more reliable tension retention, which supports stable assembly and consistent equipment performance.
The lock washer may need to be replaced if the equipment develops loose fasteners, increased vibration, rattling components or reduced stability around secured assemblies. Physical signs can include worn or flattened teeth, corrosion, rust or deformation and environmental signs may include exposure to moisture, heat or frequent thermal cycling that can weaken its locking grip.
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Absolutely! Customers are able to return most new, unopened real OEM parts within 90 days of delivery, so visit our Returns page for more details. For parts that have been installed and no longer work, fill out the form in the Defective Parts & Warranty Inquiries section.