Aircraft Airspeed Indicator Parts - ASI Parts

The aircraft airspeed indicator (ASI) is a very important aircraft instrument that allows the pilot to be aware of the forward moving speed of an aircraft. The airspeed indicator relies on the pitot-static system for gauge readings, and readings are typically provided in knots, or nautical miles per hour.

The airspeed indicator relies on both the pitot tube and the static port of the pitot-static system for measurements. The pitot tube is usually located on the fuselage of the aircraft in an area where it can receive ample ram air to receive “total pressure”. The static port, on the other hand, is often located in an undisturbed area of the aircraft body where it can measure “static pressure”. Static pressure fills up an area around a diaphragm within the airspeed indicator gauge, while total pressure from ram air enters the diaphragm. Changes in total pressure are caused when the aircraft speeds up or slows down, and this pressure change will cause the diaphragm to expand or retract, moving a dial on the instrument gauge to provide a reading of airspeed.

For optimal readings, it is crucial that aircraft airspeed indicator parts are well maintained and kept clear of debris, insects, or other debris and damage that may arise. When searching for premium aircraft airspeed indicator components, NSN Parts Hub is your sourcing solution. Our inventory of over six billion new, used, and obsolete components has everything you need for your flight instruments and beyond. With our expert staff, you can easily receive rapid lead-times and personalized quotes on the parts you are interested in. NSN Parts Hub is an ASAP Semiconductor owned and operated enterprise, and we are an FAA AC 00-56B accredited and ISO 9001:2015 certified enterprise. We are also the only independent distributor with a no China sourcing policy, and all of our parts are sourced.