Relays are a common device found in a wide variety of assemblies and systems, coming in the form of electrically operated switches that utilize electromagnets or solid-state technology for their functionality. With a relay, one can control a circuit with a low-power signal or manage several circuits with a single signal. In either application, relays guarantee electrical isolation between controlling and controlled circuits. To help you better understand how relays may be implemented and used correctly, we will provide a brief overview of them below.


Read more »


Bearings are useful devices for “bearing” the force of a load while facilitating rotation between two or more components. One common type of bearing is the thrust bearing which can support a force exerted in the same direction as the shaft(s) it is connected to. As with any other piece of equipment, certain measures can be taken to prevent damage or failure from wear. In this blog, we will discuss several different types of thrust bearings as well as ways to prevent common types of bearing failure.


Read more »


If you have ever wondered where fuel is stored in an aircraft, you may be surprised to find out that it is stored in the wings. Wet wings, as they are often called, are a popular storage strategy due to their economic efficiency. However, this is not the case for all aircraft. In fact, some planes, like military aircraft, store fuel in tanks in the aircraft itself. To better understand why fuel is stored in the wings, we will outline the various reasons such storage options are optimal for flight. Then, this blog will cover other common fuel storage options.


Read more »


An aircraft’s nose, officially known as a radome, is a spherical plastic cap that acts as a weatherproof covering for essential equipment like a radar antenna. Often called a dish antenna, a radar antenna is a sensitive plate used to transmit and receive radio signals during flight. To ensure such equipment is protected from any potential interference, an aircraft’s nose is manufactured from materials like fiberglass, quartz, honeycomb structures, and various chemical resins that block unwanted weather phenomena, but allow electromagnetic signals to pass through.


Read more »


An engine can easily be considered one of the most important elements of any fuel powered vehicle, creating the power necessary to drive systems and create movement. Depending on the type of engine that one uses, there are various parts and components that work together to establish functionality. For a reciprocating engine such as those found on light, piston-powered aircraft, the crankshaft and piston are two essential parts that must be present for combustion and power generation to be possible. In this blog, we will discuss the crankshaft and piston of reciprocating engines in more detail, allowing you to better understand their role and importance.


Read more »


While the flat wing aircraft design is quite popular, not all models follow the same configuration. Many aircraft feature wings with ends that curve upwards, especially those that are designed for commercial operations. Known as winglets, the curved design of many wings is very beneficial for a number of aircraft. In this blog, we will discuss the purpose of winglets, allowing you to better understand the advantages of such curved structures.


Read more »


The axles of automobiles are paramount to their standard operations, serving as the shafts that the rotating wheels attach to. While one end of an axle shaft is connected to the vehicle’s differential through a sun gear, the other is attached to the wheel itself. In most instances, the axles are affixed to the wheels and rotate around them, though some assemblies will have the wheels rotate on the axles through the use of bearings. In this blog, we will discuss the most common types of axle shafts found on automobiles, allowing you to understand their design and functionality.


Read more »


Welding has been used in industrial applications since the late 1800s to combine two pieces of metal. This versatile technique is used daily in a number of industries, including construction, shipbuilding, field repair, structural welding, and more. In the welding world, there are several welding techniques that produce similar results, and they are typically selected based on the application and unique working environment. One such technique is  gas welding, which is quickly becoming one of the most popular modalities found in workshops worldwide. In this blog, we will discuss everything you need to know about this welding technology, various components and gasses used.


Read more »


At the high altitudes where turbine-powered aircraft typically fly, atmospheric conditions are often poor as the temperature of air is very low. In such conditions, fluids such as water can easily freeze, having the potential of causing various issues for performance and safety. One of the most dangerous types of moisture freezing is when the water within fuel condenses and changes into a solid. When this occurs, ice formations will create obstructions within the fuel tank, fuel filter, and other components, hindering the overall fuel consumption process. As the blockage of fuel is something that any pilot would want to avoid during flight, fuel heaters are extremely important. In this blog, we will discuss the most common ways in which aircraft fuel is kept warm, allowing you to best protect your aircraft during flight operations.


Read more »


The pitot-static system is a network of pressure-sensitive pipes, sensors, and instruments used to determine an aircraft’s airspeed, altitude, and more. These measurements are displayed on an instrument panel for the pilot to analyze and interpret. Such data is paramount for standard aircraft operations, allowing pilots to safely conduct an aircraft. The system consists of a pitot tube that is typically mounted on the wing of the aircraft. A small hole on the tube allows ram air pressure to enter. There are also two static ports attached to the airplane’s fuselage that are designed to measure ambient air pressure. Other instruments include air data computers, flight data recorders, and cabin pressurization controllers.


Read more »


Aircraft face a number of challenges, ranging from operating at very high speeds to withstanding stark differences in pressure and temperature. With this in mind, the structure of an aircraft is designed to ensure not only the safety of its passengers, but it's aircrew under these varying conditions. Thus, all components of an aircraft undergo strict testing, including aircraft fuselages, engines, seats, circuit breakers, and even the windshields. In this blog, we will discuss flight deck windshields in an aircraft, their importance, and features.


Read more »


Nuts are common hardware components that are paired with fasteners such as bolts and screws to secure an assembly together. With general nut types, such components are installed to the backside of a component after the bolt or screw has been passed through a pre-drilled hole, the two fasteners then tightening to clamp parts together. In the case that parts to be assembled are too soft for accepting a threaded insert, or can only be accessed from one side, a specialty component known as a rivet nut may be used. Developed in the 1930s, rivet nuts, also known as rivnuts or blind rivet nuts, are internally threaded components that may be anchored to one side of an assembly.


Read more »


Aircraft engines are often subject to major stresses during standard flight operations, taking on a large amount of strain due to the combustion process and the presence of immensely hot exhaust gases. Because of the wear and tear that such assemblies face over time, they regularly need to be inspected to ensure that any issues or damage is remedied before a failure can occur. At certain thresholds of operating hours, intensive inspections must be carried out where the engine is fully disassembled to thoroughly look over each and every component for its health. For the most inaccessible components, a device known as a borescope is commonly used. Featuring a small camera that may be inserted into assemblies for obtaining live images, having an understanding of the basic components that make them up and how they are used can be beneficial for any aerospace engineer.


Read more »


Used in either air or water, propellers are affixed to many types of vehicles as a means of generating thrust between a fluid and a rotating propeller assembly. Sustaining momentum without putting strain on humans and capable of creating more power than that of a steam-power engine, ship propellers and their revolutionization through decades of research have increased the efficiency of ship performance and travel capabilities. Frequently built attached to a rudder that spins an joined propeller unit, modern marine propellers are often manufactured as rotatable screw propellers that come affixed with helical blades. As there are varying types of propellers for specific applications, we will discuss in detail how marine propellers operate and why their specific design directly correlates to their performance.


Read more »


Electronic devices and appliances are extremely useful for much of our daily activities, providing us with the means of lighting spaces, operating machinery, communicating with others over distances, entertaining ourselves, and much more. While electrical components and equipment may be advanced and robust in design, they still require regular maintenance and ample protection to maintain their operability and efficiency over time. To help you best protect and maintain the electrical equipment of your space or facility, we will discuss common practices and maintenance procedure that you should be familiar with.


Read more »


For aircraft to efficiently operate through a range of extreme temperatures, pressures, and humidity, they are held to high standards during their design, construction, and general maintenance. In order to achieve such readiness and reliability, aircraft engines in particular need to be well maintained and protected from heat and lubricant anomalies. To ensure that engine parts are well protected, advanced engine oils and lubricants may be used in order to cool components and mitigate friction. As engine oil is similarly held to high scrutiny for performance, many engine manufacturers will conduct oil analysis as part of engine development and testing.


Read more »


The process of manufacturing a boat involves many steps including design, fabrication, assembly, testing, and so on. Design, in addition to being the first step, is among the most important. A pivotal aspect of the design process is deciding which material to use for the boat’s hull. In this blog we will discuss the four most commonly used materials for shipbuilding: steel, aluminum, fiber-reinforced plastic (FRP), and polyethylene.


Read more »


When operating an aircraft, there are various flight characteristics that pilots must consistently monitor and be aware of for both flight efficiency and safety. One of these characteristics is the speed of the aircraft, and this value is used to ensure the aircraft is operating at safe velocities and is following set flight plans for fuel management and scheduling. To measure airspeed, pilots rely on an instrument known as an airspeed indicator (ASI). In this blog, we will discuss how aircraft airspeed indicator functions, as well as the various types of airspeed measurements that can be obtained with their readings.


Read more »


As artificial intelligence and data science continue to improve, countless industries have revolutionized their operations through its implementation. The airline industry is no exception to this change as technology has enabled many operations to become more efficient and streamlined. From booking flights to managing maintenance schedules and crews, artificial intelligence provides airlines the capability to improve upon procedures that benefit both industry workers and consumers who rely on them for traveling across the world.


Read more »


A personal electronic device, or PED, is a piece of lightweight, electrically-powered equipment. PEDs most commonly refer to consumer electronic devices such as laptop computers, tablets, e-readers, smartphones, MP3 players, drones, electronic toys, and any other device capable of communications, data processing, and/or computing. Like any electronic device, there is the possibility that the PED can fail and potentially catch on fire. When bringing a PED aboard an aircraft, it is important to know how to prevent these fires, and how to react to one should it occur.


Read more »


Despite the many impressive advancements made in the field of alternative energies, the vast majority of private and commercial aircraft still run on fuel. The function of an aircraft engine is not much different than that of any other type of engine - they burn fuel within the engine's combustion chambers to create propulsion. However, the biggest difference in the function of these engines comes in the form of the type of fuel they burn. Instead of the fuel used by cars, trucks, and other automobiles, aircraft require a specific type of fuel for optimal performance and efficiency. This is known as kerosene fuel.


Read more »


While aircraft are advanced systems that have radically changed our ability of long distance travel, they mean little without the pilots and cabin crew that operate and manage them. For aircraft that are designed to transport passengers, military personnel, and cargo, the aircraft cabin crew will typically consist of individuals who fulfill certain roles such as those that tend to passenger needs or those that specialize in medicine for emergencies. In this blog, we will discuss the common roles and responsibilities of the cabin crew, allowing you to best understand how they keep an aircraft operating efficiently and safely.


Read more »


The turboprop engine is a common engine type for aircraft, serving models that range from small agricultural planes to large commercial airliners. The performance provided by turboprop engine parts make them desirable for many applications as they combine the efficiency of low altitude propeller aircraft with the reliability of jet powered engines. In this blog, we will discuss how the turboprop engine functions with its various parts, allowing you to decide if it is the right fit for your needs.


Read more »


Recent Twitter Posts

Semiconductor's Certifications and Memberships


The only independent
distributor with a
NO CHINA SOURCING Pledge
  • All parts are stocked in the USA.
  • All parts are shipped from the USA.
  • All shipments must comply with U.S.A export laws.
  • No exceptions.
Intrepid Fallen Heroes Fund

“We Proudly Support Intrepid Fallen Heroes Fund that serves United States Military Personal experiencing the Invisible Wounds of War : Traumatic Brain Injury (TBI) and Post Traumatic Stress (PTS). Please visit website (www.fallenheroesfund.org) and help in their valiant effort”.

Thank You for Visiting.

We Hope that You Will Visit Us Again the Next Time You Need NSN Parts and Make Us Your Strategic Purchasing Partner.

Request for Quote

We use cookies to ensure that we give you the best experience on our website. If you continue to use this site we will assume that you are happy with it.