A Vulcan Hart NS-047-86 Jam Nut locks threaded components in place to preserve secure assembly and steady performance.
The jam nut secures threaded assemblies in place within compatible foodservice equipment, preventing components from loosening during operation and vibration. Its low-profile, precision-threaded design matters because it creates a tight locking fit that maintains alignment and reliable mechanical stability.
The jam nut may need replacement if connected parts can shift, loosen or vibrate excessively, which could affect equipment stability and consistent performance. Physical signs can include stripped threads, rounding, corrosion or visible wear and environmental exposure to moisture, heat or repeated vibration may also accelerate failure.
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Customers can return most new, unopened real OEM replacement parts within 90 days of delivery, so head to our Returns page to see if your order qualifies. For orders fulfilled by a third-party seller, you'll need to follow their own policy.