A Rational 1107.0100P Star Lock Washer grips fastened parts tightly to maintain a secure connection and steady performance.
The star lock washer secures fastened connections in the unit by biting into the mating surface and resisting loosening caused by vibration, heat cycling and repeated operation. Its star-shaped locking design matters because it maintains tension and grounding contact more reliably than a plain washer, supporting stable assembly in combination oven and steamer applications.
The star lock washer may be wearing out if the unit develops loose hardware, vibration-related rattling or inconsistent retention at connected components during operation. Physical signs can include flattened or damaged teeth, corrosion, discoloration or residue buildup and environmental exposure to moisture, heat and cleaning chemicals might accelerate that wear.
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Yes! Parts Town gives you the option to return most new, unopened real OEM replacement parts within 90 days of delivery, so check our Returns page to see if your purchase qualifies. If the item has been installed and no longer works, complete the form in the Defective Parts & Warranty Inquiries section.