3812 Search, Detection, Navigation, Guidance, Aeronautical, and Nautical
- 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

