AS9120B, ISO 9001:2015, and FAA AC 0056B ACCREDITED

What Are Aircraft Nuts?

Any number of aircraft operations, from refueling to deicing, requires a keen understanding of the various components that make up the model in question, and one often overlooked component is the aircraft nut. Although it may seem like a small and insignificant part, aircraft nuts are essential for holding different components together and ensuring the overall structural integrity of an aircraft. In this blog, we will discuss aircraft nuts in more detail, allowing you to familiarize yourself with such parts.

In their most basic form, aircraft nuts are fastening devices that feature a hole with internal threading. Generally, nuts are used to secure bolts, screws, and other threaded fasteners in place, their threading being designed to engage with the external threading of other hardware components. They come in various shapes, sizes, and materials to suit different aircraft applications, making it important to have a basic understanding of the most common types.

One common type of nut used in aircraft is the plain nut. This basic nut has internal threading that matches the external threads of a bolt or screw, and when tightened, the nut securely holds the fastener in place. Plain nuts are often used in applications where vibration is not a concern, as they do not provide any locking mechanism to prevent loosening over time. Rather, they offer ample security for general applications while being very cost effective.

To address the issue of loosening due to vibration, self-locking nuts are employed. These nuts feature a special locking mechanism that prevents them from coming loose. One popular type of self-locking nut is the elastic lock nut. These nuts have a ring of elastic material embedded within the threads, which creates friction and resists loosening under vibration or shock. As such, elastic lock nuts are commonly used in critical areas of an aircraft where safety is paramount.

Another type of self-locking nut is the jam nut. Jam nuts are thinner than regular nuts and are typically used in conjunction with other nuts to prevent them from coming loose like a locking nut. They are tightened against the main nut, effectively "jamming" it in place and preventing rotation. For this reason, jam nuts are often used in areas where space is limited or where frequent adjustments need to be made.

When it comes to aircraft maintenance, understanding the different types of nuts that may be present in an assembly is crucial. By using the appropriate nut for a given application, aircraft mechanics and technicians ensure the safety and reliability of the aircraft. Whether it is a plain nut for non-vibrating areas or self-locking nuts for critical components, each nut serves a specific purpose.

If you are in the market for top-quality aircraft nuts that you can steadily depend on, there is no better purchasing platform than Parts 3Sixty. Here on our website, we provide highly competitive pricing and rapid lead times on over 6 billion new, used, obsolete, and hard-to-find products that are ready for purchase from a singular purchasing platform. Take the time to peruse our offerings however you see fit, and you can always utilize our online RFQ forms to quickly and easily request quotes for your comparisons. We guarantee responses to quote requests within 15 minutes of receiving and reviewing completed forms, and you can also give us a call or send us an email at any time to reach us directly. Kick off procurement with Parts 3sixty today and see why so many customers depend on us for their operational needs. 


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