Establishments primarily engaged in manufacturing search, detection, navigation, guidance, aeronautical, and nautical systems and instruments. Important products of this industry are radar systems and equipment; sonar systems and equipment; navigation systems and equipment; countermeasures equipment; aircraft and missile control systems and equipment; flight and navigation sensors, transmitters, and displays; gyroscopes; airframe equipment instruments; and speed, pitch, and roll navigational instruments and systems. Establishments primarily engaged in manufacturing aircraft engine instruments or meteorological systems and equipment, including weather tracking equipment, are classified in Industry 3829.

• Acceleration indicators and systems components, aerospace types
• Air traffic control radar systems and equipment
• Airborne integrated data systems/flight recorders
• Aircraft flight instruments
• Airframe equipment instruments
• Airspeed instrumentation (aeronautical instruments)
• Altimeters, aeronautical
• Angle-of-attack instrumentation
• Angle-of-yaw instrumentation
• Artificial horizon instrumentation
• Automatic pilots
• Bank and turn indicators and, components (aeronautical instruments)
• Cabin environment indicators, transmitters, and sensors
• Compasses, gyroscopic and magnetic except portable
• Distance measuring equipment (DME), aeronautical
• Driftmeters, aeronautical
• Fathometers
• Glide slope instrumentation
• Gyrocompasses
• Gyrogimbals
• Gyropilots
• Gyroscopes
• Heads-up display (HUD) systems, aeronautical
• Horizon situation instrumentation
• Hydrophones
• Inertial navigation systems, aeronautical
• Infrared homing systems, aeronautical
• Instrument landing system instrumentation, airborne or airport
• Light reconnaissance and surveillance systems and equipment
• Machmeters
• Missile guidance systems and equipment
• Nautical instruments
• Navigational instruments
• Omnibearing instrumentation
• Pictorial situation instrumentation
• Position indicators, airframe equipment: e.g., for landing gear,
• Radar systems and equipment
• Radio magnetic instrumentation (RMI)
• Rate-of-climb instrumentation
• Sextants, except surveying
• Sonabuoys
• Sonar fish finders
• Sonar systems and equipment
• Space vehicle guidance systems and equipment
• Taffrail logs
• Warfare countermeasures equipment
• Wheel position indicators and transmitters, aircraft