What is use of Washers in Aerospace Industry?

Washers are small parts and, by themselves, seem rather insignificant. Despite this, in the aerospace industry, it is plain to see how small parts can be crucial to larger components, making machines greater than the sum of their parts. Each of Boeing’s groundbreaking 787 dreamliners features a staggering 2.4 million fasteners used to assemble it. In fact, almost all of the aircraft in the sky, as well as those in space, are dependent upon an ensemble of tiny parts like washers and other fasteners including nuts and bolts. This blog will shed some light on the many applications of washers within the aerospace industry and give you a better idea of their importance.

The primary purposes of a washer is to distribute a load, serve as a spacer, and perform as a locking device. While these are the main uses, there are many applications beyond them. One other use for washers is to compensate for a poor fit. In the case of a bolt being longer than the ideal length, up to three washers can be used to distribute the length of the bolt. Another use is to prevent galvanic corrosion. Galvanic corrosion is a phenomenon that occurs when a metal begins to corrode because it is in electrical contact with another metal for an extended period of time. Washers act as a neutralizer by separating the two metals, thereby preventing galvanic corrosion.

Washers are also helpful in load bearing. They distribute the weight of a bolt onto an adjacent surface, as well as acting as a grip to keep the bolt securely in place. Washers are also frequently used as a shim whenever adjustments are needed to maintain the accuracy of certain measurements. A final application of washers is to lock bolts in place. There are many types of washers that can be used to secure a bolt to a surface, providing a grip for the two metals.Washers are an important part of intricate aviation machinery, and won’t be going away anytime soon.

At ASAP Aviation Unlimited, owned and operated by ASAP Semiconductor, we can help you find all the washers for the aerospace, civil aviation, and defense industries. We’re always available and ready to help you find all the parts and equipment you need, 24/7-365. For a quick and competitive quote, email us at sales@asapaviationunlimited.com or call us at +1-919-348-4040.


June 1, 2020


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