Industry: 3812—Search, Detection, Navigation, Guidance, Aeronautical, and Nautical Systems and Instruments
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 typesHydrophones
Air traffic control radar systems and equipmentInertial navigation systems, aeronautical
Airborne integrated data systems/flight recordersInfrared homing systems, aeronautical
Aircraft flight instrumentsInstrument landing system instrumentation, airborne or airport
Airframe equipment instrumentsLight reconnaissance and surveillance systems and equipment
Airspeed instrumentation (aeronautical instruments)Machmeters
Altimeters, aeronauticalMissile guidance systems and equipment
Angle-of-attack instrumentationNautical instruments
Angle-of-yaw instrumentationNavigational instruments
Artificial horizon instrumentationOmnibearing instrumentation
Automatic pilotsPictorial situation instrumentation
Bank and turn indicators and, components (aeronautical instruments)Position indicators, airframe equipment: e.g., for landing gear, stabilizers
Cabin environment indicators, transmitters, and sensorsRadar systems and equipment
Compasses, gyroscopic and magnetic except portableRadio magnetic instrumentation (RMI)
Distance measuring equipment (DME), aeronauticalRate-of-climb instrumentation
Driftmeters, aeronauticalSextants, except surveying
FathometersSonabuoys
Glide slope instrumentationSonar fish finders
GyrocompassesSonar systems and equipment
GyrogimbalsSpace vehicle guidance systems and equipment
GyropilotsTaffrail logs
GyroscopesWarfare countermeasures equipment
Heads-up display (HUD) systems, aeronauticalWheel position indicators and transmitters, aircraft
Horizon situation instrumentation
Codes Titles Number of US Businesses
3812Search and Navigation Equipment2,117
381200Search and navigation equipment604
38120000Search and navigation equipment604
381201Aircraft/aerospace flight instruments and guidance systems626
38120100Aircraft/aerospace flight instruments and guidance systems360
38120101Acceleration indicators and systems components, aerospace119
38120102Aircraft flight instruments33
38120103Airspeed instrumentation (aeronautical instruments)9
38120104Altimeters, standard and sensitive4
38120107Artificial horizon instrumentation1
38120108Bank and turn indicators and components2
38120109Driftmeters, aeronautical1
38120110Electronic detection systems (aeronautical)19
38120111Flight recorders5
38120112Glide slope indicators2
38120113Gyro gimbals0
38120114Gyrocompasses0
38120115Gyropilots0
38120116Gyroscopes13
38120117Heads-up display systems (HUD), aeronautical6
38120118Horizon flight indicators1
38120119Inertial guidance systems7
38120120Infrared object detection equipment33
38120121Instrument landing systems (ILS), airborne or ground3
38120123Omnibearing indicators3
38120124Position indicators for aircraft equipment2
38120125Rate-of-climb instrumentation3
381202Aircraft control instruments94
38120200Aircraft control instruments28
38120201Aircraft control systems, electronic51
38120202Automatic pilots, aircraft15
381203Navigational systems and instruments333
38120300Navigational systems and instruments110
38120301Antennas, radar or communications42
38120302Binnacles (compass housings)1
38120303Compasses and accessories11
38120304Control receivers0
38120305Degaussing equipment3
38120306Radar systems and equipment85
38120307Sonar systems and equipment66
38120308Space vehicle guidance systems and equipment15
381204Nautical instruments45
38120400Nautical instruments16
38120401Fathometers0
38120402Hydrophones0
38120403Sextants29
38120404Taffrail logs0
381205Defense systems and equipment230
38120500Defense systems and equipment213
38120501Missile guidance systems and equipment7
38120502Warfare counter-measure equipment10
381206Search and detection systems and instruments155
38120600Search and detection systems and instruments76
38120601Air traffic control systems and equipment, electronic15
38120602Detection apparatus: electronic/magnetic field, light/heat50
38120603Electronic field detection apparatus (aeronautical)4
38120604Magnetic field detection apparatus10
381299Search and navigation equipment, nec30
38129901Cabin environment indicators7
38129902Distance measuring equipment6
38129903Light or heat emission operating apparatus12
38129904Pictorial deviation indicators2
38129905Radio magnetic instrumentation3