FSC 6605
Navigational Instruments

Includes Azimuths; Sextants; Octants; Compasses; Plotting Boards; Underwater Log Equipment; Air Position Indicators; Drift Meters.
Federal Supply Group:
FSG 66 Instruments and Laboratory Equipment
Note-Infrared assemblies (including sub-assemblies and components) designed specifically for use as or with instruments and laboratory equipment are included in the classes of this group. Also included are computers (including computer assemblies, computer systems and components) designed specifically for use with instruments and laboratory equipment.
Supply Items Included in Federal Supply Class 6605
- COMPUTER,NAVIGATIONAL 336 Items
- A computer for the determination of two or more mavigational factors which determines the position, course and distance of an aircraft, missile, vessel or ground vehicle. Do not use if a more specific item mane applies. See also COMPUTER, ALTITUDE-AZIMITH; COMPUTER, AZIMUTH; COMPUTER, BOMB-NAVIGATIONAL; COMPUTER, CORRECTION; COMPUTER, COURSE-DISTANCE; COMPUTER, FLIGHT DIRECTOR; COMPUTER, HEADING; COMPUTERM HEADING-TRACK; COMPUTER, MACH NUMBER; COMPUTER, MAGENETIC VARIATION; COMPUTER, PRESENT POSITION; COMPUTER, RANGE; COMPUTER, SPEED AND LATITUDE CORRECTION; COMPUTER, STABILIZATION DATA; COMPUTER, TARGET INTERCEPT; and COMPUTER, TRACK.
- CONTROL-INDICATOR 173 Items
- A component which performs the dual function of presenting visual information from other sources such as navigation, radar and the like and regulating the mode of operation of those sources. This item is essential to the end use or operation of the other sources. See also CONTROL-MONITOR.
- CONTROL,UNDERWATER LOG 22 Items
- RODMETER,UNDERWATER LOG 46 Items
- An item which projects below the ship's hull and in which the signal is generated for actuating the underwater log equipment.
- DRIFT METER 40 Items
- An item which measures the angle between the longitudinal axis of an aircraft and its actual path over the earth's surface. It may or may not be designed for obtaining the azimuth bearing and/or computing the ground speed of an aircraft.
- TRANSMITTER,INDUCTION COMPASS 138 Items
- A transmitter for sensing the earth's magnetic line of flux and transmitting the intelligence electrically to a control and/or a remotely located compass indicator.
- BINNACLE 77 Items
- A housing for a magnetic compass and related equipment.
- BINNACLE STAND 27 Items
- A pedestal used for mounting a magnetic compass binnacle.
- STADIMETER 23 Items
- A navigational instrument consisting of height and distance scales and mirrors and/or lenses which operate on the coincidence principle. It is used for determining distance when height is known.
- INDICATOR,INDUCTION COMPASS 160 Items
- An indicator which receives signals from an induction compass transmitter and indicates the heading with respect to magnetic and/or true north of an aircraft, vessel, or vehicle.
- PELORUS STAND 36 Items
- An item, usually attached to the deck of a ship, for mounting a pelorus.
- PELORUS 44 Items
- A navigational instrument consisting of sighting vanes and/or alidade located above a dial graduated in degrees. It is used to determine bearings and is normally mounted on a pedestal or rail bracket.
- SEXTANT,BUBBLE 21 Items
- A sextant incorporating a bubble which acts as an artifical horizon.
- SEXTANT,MARINE 45 Items
- COMPASS,ASTRO 11 Items
- A navigational instrument designed to aid in obtaining through observation of celestial bodies or fixed object, the true heading of an aircraft, true bearing and/or relative bearing to a distant object.
- VALVE,SEA,UNDERWATER LOG 16 Items
- An item attached to the hull of a ship through which the underwater log rodmeter extends into the water. It includes provisions for closing the hull opening when the rodmeter is withdrawn.
- TRACER,DEAD RECKONING 80 Items
- A device, equipment, or system which receives inputs from the navigational computer or the navigational computer-indicator of North and East positional component signals of ship's travel and displays a continuous graphical recording of ship's movement. It may compute and indicate continuously ship's position in latitude and longitude, and may contain a range-bearing projector which projects a light image in the form of a compass rose on the plotting surface or may utilize a display with compass-rose to indicate directional relationships for navigation purposes. This item may have a digital display.
- COMPASS,GYRO 346 Items
- An instrument utilizing a gyroscopic principle to determine true north.
- STABILIZER,GYRO 40 Items
- An instrument utilizing gyroscopic principle to compensate for roll and pitch of a ship.
- GAGE,SUBMARINE DEPTH,DIAL INDICATING 79 Items
- An instrument designed to measure the distance between the keel of the submarine and the surface of the water by means of a pressure sensitive element which transmits energy, by direct linkage, to the indicating pointer of a scale calibrated in feet. Excludes GAGE, PRESSURE, DIAL INDICATING.
- FRAME,GLASS MIRROR 13 Items
- WEIGHT,SOUNDING 46 Items
- A metal weight whose cross section may be one of various shapes, having an eye at one end to which a line may be attached and may have a hollow or solid base; used for determining the depth of water.
- LEVEL,ROTOR CASE,GYROCOMPASS 24 Items
- An indicating instrument which serves as a guide in leveling the rotor axis of a gyrocompass. It consists of a graduated vial with a liquid bubble and is attached to the rotor case of a gyrocompass.
- AZIMUTH CIRCLE 170 Items
- A navigational instrument used for the determination of the azimuths of celestial objects and the bearings of terrestrial objects by means of sighting vanes, prisms, and mirrors mounted on a ring formed to fit and rotate about the bezel of a marine compass, permitting simultaneous viewing of a target and the compass card reading. Excludes BEARING CIRCLE.
- BEARING CIRCLE 21 Items
- A navigational instrument used for the determination of the bearings of terrestrial objects by means of sighting vanes, prism, and mirror mounted on a ring formed to fit and rotate about the bezel of a marine compass, permitting simultaneous viewing of a target and the compass card reading. See also AZIMUTH CIRCLE.
- COMPUTER,SPEED AND LATITUDE CORRECTION 14 Items
- A computer which utilizes a power driven mechanism and/or electronic circuits to compute corrective electrical signals, reflective of course and speed and transmits this corrective signal to the gyrocompass. See also COMPUTER, NAVIGATIONAL.
- COMPASS,MAGNETIC,MOUNTED 677 Items
- An instrument which utilizes a magnetic needle or indicator and a graduated dial or card to determine direction in relation to the magnetic north. It has provisions for mounting in a fixed position to insure proper alignment when in use.
- COMPASS,MAGNETIC,UNMOUNTED 319 Items
- An instrument which utilizes a magnetic needle or indicator and a graduated dial or card to determine direction in relation to the magnetic north. It does not have provisions for mounting in a fixed position when in use. It may include a mirror bisected by a hairline and affixed to the inside of a hinged cover.
- CONTROL-INDICATOR SUBASSEMBLY 37 Items
- Two or more different types of items, having a common mounting or mounted on each other, which together form a portion of a control-indicator, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.
- TUBE,BUBBLE,SHIP CLINOMETER 12 Items
- A spirit filled glass tube provided with an air chamber for regulating the bubble size. It is curved to various degrees of arc for use on a BOARD, SHIP CLINOMETER.
- CALIBRATOR SET,MAGNETIC COMPASS 21 Items
- A fixed number of components and/or items, not all having the same basic name, which are required for the performance of a complete specific operational function. May exclude certain operating components supplied separately or already present at the point of usage.
- CASE,UNMOUNTED MAGNETIC COMPASS 22 Items
- A case constructed of pliable material designed to inclose an unmounted magnetic compass. It may have belt hooks for carrying. For cases designed for the shipping and storing of magnetic items, see CASE, SHIPPING AND STORAGE, MAGNETICALLY SHIELDED.
- PLOTTING TABLE,TACTICAL DISPLAY 31 Items
- A tablelike item having an inscribed top surface on which a ship's own course silhouette is projected and the tactical positions of other ships and planes are displayed.
- CONTROL,INDICATOR-SYNCHRONIZER 11 Items
- A control that determines the mode of operation of an indicator(s) and a synchronizer(s).
- CONTROL,NAVIGATIONAL COMPUTER SET 47 Items
- A control that determines the mode of operation of a navigational computer set.
- INDICATOR,BEARING-DISTANCE-HEADING 33 Items
- An indicator that displays data for the determination of the angle between a target and a fixed reference point, the spacing between two or more points in scalar values, and the angle between a point such as magnetic or true north and the longitudinal axis of the aircraft, ship, or ground vehicle in which it is installed.
- INDICATOR,BEARING-HEADING 42 Items
- An indicator that displays data for the determination of the angle between a target and a fixed reference point, and the angle between a point such as true or magnetic north and the longitudinal axis of the aircraft, ship, or ground vehicle in which it is installed.
- INDICATOR,COURSE 166 Items
- An indicator that displays the angular value, measured clockwise, between true north and a line connecting the points of origin and destination over which an aircraft, ship or ground vehicle travels.
- INDICATOR,MULTIPLE,AIR NAVIGATION 78 Items
- An indicator for the display of four or more factors that are used in the solution of an air navigation problem. See also INDICATOR (2) (as modified).
- PLOTTING BOARD,SHIP'S STATUS 83 Items
- An all-purpose plotting board designed to display various types of information aboard ship.
- PLOTTING BOARD,TACTICAL DISPLAY 34 Items
- A plotting board designed so the tactical position of ships and aircraft may be displayed.
- COMPENSATOR,ELECTRONIC,MAGNETIC COMPASS 48 Items
- An item which provides facilities for electronically correcting errors in the indication of a magnetic compass by the manual adjustment of current intensity in coils which are in proximity to specific points in or near the compass. The correcting action is a function of electromagnetic field intensity about the coils, resulting from varying the current intensity. Excludes correcting devices of the permanent magnet type.
- COMPUTER SET,NAVIGATIONAL 47 Items
- A complete electronic set for the determination of four or more factors of a navigation problem. For sets that determine three or less factors, see COMPUTER SET (as modified).
- TRANSMITTER,COURSE DATA 52 Items
- A transmitter that electrically processes course information in a manner suitable for application to another component(s).
- HOUSING,INDICATOR 109 Items
- COMPUTER,AIR DATA 63 Items
- A computer specifically designed to convert basic air data input signals into electrical output signals representing the necessary flight parameters such as pressure altitude, mach number, airspeed, and impact pressure. See also COMPUTER, AIR SPEED; COMPUTER, ALTIMETER-PRESSURE; COMPUTER, ALTITUDE; COMPUTER, MACH NUMBER; COMPUTER, PRESSURE-ALTITUDE; COMPUTER, TRUE WIND DIRECTION AND INTENSITY; and COMPUTER, ZONE WIND.
- INDICATOR,HORIZONTAL SITUATION 184 Items
- A panel mounted aircraft instrument which provides, on a single display, navigational information, such as the magnetic heading, heading selection, course selection, course deviation, bearing, and distance of a selected navigational facility. Knob(s) are located on the face for inputing selected course and/or heading data.
- COMPUTER SUBASSEMBLY 258 Items
- Two or more different types of items, having a common mounting or mounted on each other which together form a portion of a computer, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.
- MODIFICATION KIT,INSTRUMENTS AND LABORATORY EQUIPMENT 43 Items
- An item or tiems employed to modify items specifically designed for laboratory equipment and instruments.
- CONTROL UNIT,NAVIGATION SET 228 Items
- An item designed to input specified navigation information. It may also be used to display actual navigation information.
- DATA CONVERTER,NAVIGATION SET 99 Items
- A collection of items designed for converting navigation data.
- COMPENSATION EQUIPMENT,COMPASS 29 Items
- GYRO ASSEMBLY,NAVIGATION 113 Items
- A collection of items forming part of a gyro system. The gyro may be an integral part of the assembly.
- HOUSING ASSEMBLY,NAVIGATION SET 120 Items
- A collection of items designed for surrounding or inclosing parts of a navigation set.
- NAVIGATION SET 202 Items
- A collection of equipment suitable for determining approximate magnetic or astronomic azimuth. It may or may not include instruments for determining position.
- CLINOMETER,INCLINATION 116 Items
- An item designed to indicate and/or transfer the respective values of the inclination of a vehicle, measured in a longitudinal and/or transverse axis.
- EVALUATION AND TRANSMISSION EQUIPMENT,FLIGHT AND LANDING DATA 13 Items
- A collection ofitems designed for the determination of data for camera, programmer, launcher and ground homing system operation, as required for the flight of a DRONE, AIRCRAFT. Moreover, this equipment is used for course plotting, and data transmitted by the guided missile are evaluated by an integrated computer. The equipment is transportable and may comprise a data processing, power supply and airconditioning system, repair material and additional accessories.
- SPEED LOG SYSTEM,DOPPLER SONAR SYSTEM 45 Items
- A collection of items that determine ship's speed and distance traveled. Short duration ultra sonic pulses are transmitted in the ship's hull, forward and aft, and after conversion to electrical signals, the response data appears as speed and distance in display units.
- SENSOR,INERTIAL SYSTEM NAVIGATION 90 Items
- A device designed to provide digital outputs, true heading, angular rates and accelerations, inertial velocity and acceleration, body rates and accelerations and position to associated aboard equipments.
- SENSOR,SPEED LOG,ELECTROMAGNETIC 58 Items
- A hull item used to calculate the speed of a ship. The water passing by along the sensor makes the magnetic field generated by the sensor change. The magnetic field variations are processed by an electronic case which provides digital information.
- CHEST,NAVIGATION SET 12 Items
- INERTIAL REFERENCE UNIT,NAVIGATION 58 Items
- An electromechanical and/or electronic device, consisting of sensors, accelerometers, gyroscopes for the pitch, roll and yaw axis, and a processor, to provide velocity and angular position data. May be a component of an INERTIAL NAVIGATION UNIT.
- INCLINOMETER,ELECTRONIC 108 Items
- An inclinometer consisting of a pendular system and an optical position sensor. When the pendular system is inclined, it's position is detected and converts in an electric current which actuates a galvanometer. The electric current, which is proportional to the detected gravity component, is measured on a resistance terminal. The calibrated voltage obtained is converted in an angle value on a digital display.
- COMPUTER,AIRCRAFT ATTITUDE 11 Items
- A computer that contains the follow-up servo for pitch and roll information from the platform, and the circuitry for computing vertical attack angles, climb angle, vertical velocity, and ground speed to altitude ratio.
- REPAIR KIT,NAVIGATIONAL INSTRUMENTS 12 Items
- A repair kit designed to maintain various navigational instruments in good working order.
- INERTIAL NAVIGATION UNIT 350 Items
- A self-contained Line Replaceable Unit that provides acceleration, velocity, and position data for land vehicles, watercraft or aircraft. It may also provide altitude information for aircraft. It is part of an INERTIAL NAVIGATION SYSTEM and may contain an INERTIAL REFERENCE UNIT, NAVIGATION.
- INERTIAL NAVIGATION SYSTEM 416 Items
- A self-contained, dead-reckoning system that senses acceleration along the pitch, yaw and roll axis of land vehicle, watercraft or aircraft and calculates the distance from a reference point. They can include INERTIAL NAVIGATION UNIT(s); PLATFORM, INERTIAL; power supplies; subsystems; mode selectors; and control displays.
- PLATFORM,INERTIAL 27 Items
- Provides stabilized mounting facilities for INERTIAL NAVIGATION UNIT(s); INERTIAL REFERENCE UNIT, NAVIGATION; and the like.
- MODULAR AZIMUTH POSITIONING SYSTEM 24 Items
- A self-contained survey device which generates position data relative to the movement of the host vehicle. It employs a Vehicle Motion Sensor (VMS) for converting vehicle odometer cable shaft revolutions into digital data and a self-contained Control and Display Unit (CDU) for operator interface and displaying system mode, status, navigation data, alert information, warnings, and other messages.
- ARITHMETIC UNIT,COMPUTER 22 Items
- An item that performs operations such as addition, subtraction, multiplication and division on signals being processed within a computer. It may also provide temporary storage and shift register functions, but only in relation to its own operation, and not to that of the overall computer.
- COMPUTER,HEADING 14 Items
- An item used to determine the angle measured clockwise from a reference datum point to the longitudinal axis of an aircraft or ship. See also COMPUTER, NAVIGATIONAL.
- COUNTER ASSEMBLY,ELECTRONIC,DIGITAL 25 Items
- PLOTTER,SURFACE 18 Items
- A device generally constructed of plastic material having a rotating center sheet between two fixed identical outer sheets. A black azimuth circle, with markings on the outside of the circle, is printed on each of the outer sheets, and a red azimuth circle, with markings inside the circle, is printed on each side of the rotating center sheet. The azimuth circles have radial lines placed ten degrees apart and ten concentric rings, with each concentric ring 0.5 inch (12.7 millimeters) greater than the preceding one. This device is arranged to provide true-relative and relative-type bearing conversion for simultaneous plotting of true and relative bearings and to perform the functions of a standard maneuvering board on each side, permitting two plots at different scales.
- PLOTTER-PROTRACTOR,AIR NAVIGATION 25 Items
- An item generally constructed on a transparent plastic material. It embodies a standard inch scale, an inner and/or outer statue mile scale, a vertical statue mile scale, and may also include a nautical mile scale. The semicircular protractor portion may be offset or inset in forming a part of the item. It is designed to be used in plotting courses, measuring distances between two points on a chart or map, establishing meridians of references, solving wind angles, and determining bearing positions.
- HEAD ASSEMBLY,READ-WRITE 11 Items
- A specifically designed component assembly which reads, records or erases information in a storage medium, usually a stack of electromagnets arranged geometrically, used to read, write or erase data in digital form on a magnetic drum, disk or magnetic tape.
- GLOBAL POSITIONING SYSTEM-INERTIAL NAVIGATION SYSTEM,EMBEDDED 40 Items
- A self-contained Line Replaceable Unit that combines a Global Positioning System receiver with an Inertial Navigation System to provide navigation outputs of linear and angular acceleration, velocity, position, altitude, true and magnetic heading, altitude (pitch, roll, and platform azimuth), body angular rates, and time.
Stock Items with Pictures
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