Engine Electrical System Components, Nonaircraft - United States (US)

Federal Supply Class (FSC): 2920

Federal Supply Group (FSG): 29 Engine Accessories

NATO Supply Classification Class (NSC): 2920

NATO Supply Classification Group (NSG): 29 Engine Accessories

Items Managed by United States (US)

FSC 2920 Engine Electrical System Components, Nonaircraft - United States (US)

Includes Generators; Magnetos; Spark Plugs; Ignition Coils; Ignition Distributors; Engine Voltage Regulators; Ignition Harness Assemblies; Starting Motors for Engines.

Excludes Vehicular Lighting Fixtures (FSC 6220) and Aircraft Generators (FSC 2925).

Note-Unless specifically excluded, engine accessories for all vehicles, such as aircraft, motor vehicles, ships, tractors, and construction vehicles, as well as accessories for stationary engines, are classified in this Group.

Frequently Asked Questions (FAQ) for Federal Supply Class 2920

What is Federal Supply Class 2920?: FSC 2920 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 2920) in the USA for supply items codified in the category of Engine Electrical System Components, Nonaircraft.
What is NATO Supply Classification Class 2920?: NSC 2920 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 2920 in the USA) for supply items codified in the category of Engine Electrical System Components, Nonaircraft.
Which Federal Supply Group is FSC 2920 in?: FSC 2920 is in Federal Supply Group (FSG) 29 which contains Engine Accessories.
Which NATO Supply Classification Group is NSC 2920 in?: NSC 2920 is in NATO Supply Classification Group (NSG) 29 which contains Engine Accessories.

Supply Items Included in Federal Supply Class 2920

What is a Distributor Contact Set? 118 Items: A Distributor Contact Set (CONTACT SET,DISTRIBUTOR) is a grouping of two or more separate distributor or magneto contacts.
What is an Ignition Magneto? 157 Items: An Ignition Magneto (MAGNETO,IGNITION) is an electric generator whose field poles are permanent magnets and which is used to generate electrical energy for the purpose of igniting the combustible mixture in internal combustion engine cylinders. Spark distribution may be accomplished by a distributor portion of the magneto or by a separate item.
What is an Ignition Distributor Rotor? 165 Items: An Ignition Distributor Rotor (ROTOR,IGNITION DISTRIBUTOR) is the rotating part of an ignition distributor which transfers electrical energy to stationary electrodes. Does not include shaft.
What is a Spark Plug? 427 Items: A Spark Plug is an item containing two or more electrodes across which an electric spark is discharged to ignite a fuel and air mixture, primarily in internal combustion engines. Excludes GLOW PLUG; and ELECTRODE.
What is an Ignition System Distributor? 236 Items: An Ignition System Distributor (DISTRIBUTOR,IGNITION SYSTEM) is a mechanism used to regulate the time and transmission of electrical energy in an ignition system for the purpose of igniting the combustible mixture in an internal combustion engine.
What is an Ignition Coil? 223 Items: An Ignition Coil (COIL,IGNITION) is an item specifically designed to produce the high voltage necessary to provide a spark for igniting combustible mixtures, primarily in internal combustion engines.
What is an Ignition Lock Switch? 242 Items: An Ignition Lock Switch (SWITCH,LOCK,IGNITION) is a switch which is externally actuated by a device such as a key/cylinder lock to actuate a remote lever or rod rack to activate a remote switch. The actuation device may or may not be an integal part of the switch. The primary purpose of the switch is to open and close the ignition circuit of an internal combustion engine and actuate various accessories. Excludes SWITCH, ENGINE STARTER, ELECTRICAL and SWITCH, LOCK.
What is a Generator Armature? 124 Items: A Generator Armature (ARMATURE,GENERATOR) is an armature which is a part of a generator. See also ROTOR, GENERATOR.
What is a Motor Armature? 242 Items: A Motor Armature (ARMATURE,MOTOR) is an armature which is a part of a motor. See also ROTOR, MOTOR.
What is a Starter-Generator Armature? 41 Items: A Starter-Generator Armature (ARMATURE,STARTER-GENERATOR) is an armature which is a part of an electrical rotating machine that combines both starter and generator action.
What is a Generator Rotor? 128 Items: A Generator Rotor (ROTOR,GENERATOR) is a rotor which is a part of an alternating current generator. See also ARMATURE, GENERATOR.
COVER,ELECTRIC MOTOR 32 Items
What is an Electrical Generator Cover? 36 Items: An Electrical Generator Cover (COVER,ELECTRICAL GENERATOR) is excludes COVER, ACCESS; COVER, GENERATOR SET; and COVER, MOTOR-GENERATOR.
What is a Magneto Coil Cover? 11 Items: A Magneto Coil Cover (COVER,MAGNETO COIL) is a cover specifically designed for mounting on a magneto housing. It may include one or more fittings to facilitate the connection of ventilating and/or electrical devices.
What is an Ignition System Distributor Shield? 11 Items: An Ignition System Distributor Shield (SHIELD,IGNITION SYSTEM DISTRIBUTOR) is an item specifically designed to be placed around an ignition distributor for the purpose of shielding against electrical interference and having provisions for passage of the ignition cable. May also provide mechanical protection.
What is a Spark Plug Shield? 20 Items: A Spark Plug Shield (SHIELD,SPARK PLUG) is an item specifically designed to be placed around a spark plug for the purpose of shielding against electrical interference and having provisions for passage of the ignition cable. May also provide mechanical protection.
BASE,MOTOR 11 Items
What is an Electrical Engine Starter? 1208 Items: An Electrical Engine Starter (STARTER,ENGINE,ELECTRICAL) is an item consisting of an electric, direct current, motor and integral and associated components, primarily designed to crank an internal combustion engine, or a gas turbine engine until it starts operating under its own power. May include facilities for manual or mechanical actuation. Excludes MOTOR, ENGINE STARTER, ELECTRICAL; STARTER, MOTOR; STARTER, ENGINE (as modified); and SWITCH, ENGINE STARTER, ELECTRICAL.
What is an Electrical Rotating Equipment End Bell? 188 Items: An Electrical Rotating Equipment End Bell (END BELL,ELECTRICAL ROTATING EQUIPMENT) is an item designed to support and position an armature or rotor when installed in a motor, generator or similar electrical rotating equipment. It may include items such as bearings, brushes, brush holders, oilers.
What is a Linear Electro-Mechanical Actuator? 40 Items: A Linear Electro-Mechanical Actuator (ACTUATOR,ELECTRO-MECHANICAL,LINEAR) is a self-contained power transmitting device designed to convert electrical energy into controlled mechanical force, in the form of linear (straight line) mechanical movement. Comprised of an electrical motor(s), gear box(es), screwjacks, limit switch(es), and such accessories as required for the specific moving and positioning of other components. Excludes hydraulic and pneumatic cylinders and screwjacks.
What is an Ignition Distribution Cap? 219 Items: An Ignition Distribution Cap (CAP,IGNITION DISTRIBUTION) is a cap, generally of phenolic composition, designed to facilitate the connection of the high tension coil and spark plug leads to the distributor or magneto of an internal combustion engine.
What is a Generator Field Winding? 85 Items: A Generator Field Winding (WINDING,GENERATOR FIELD) is a winding which is a maintenance part for an electric generator.
What is a Motor Field Winding? 115 Items: A Motor Field Winding (WINDING,MOTOR FIELD) is a winding which is a maintenance part for an electric motor.
What is a Starter-Generator Field Winding? 16 Items: A Starter-Generator Field Winding (WINDING,STARTER-GENERATOR FIELD) is a winding which is a maintenance item specifically designed for a starter-generator.
PARTS KIT,TERMINAL,ENGINE IGNITION 24 Items
What is an Electrical Engine Starter Motor? 121 Items: An Electrical Engine Starter Motor (MOTOR,ENGINE STARTER,ELECTRICAL) is the component part of a STARTER, ENGINE, ELECTRICAL which transforms electrical energy into mechanical energy. It is specifically designed to energize an internal combustion engine starter.
What is an Electrical Engine Starter Relay-Solenoid? 227 Items: An Electrical Engine Starter Relay-Solenoid (RELAY-SOLENOID,ENGINE STARTER,ELECTRICAL) is an item having a moving plunger type core which travels parallel to the longitudinal axis of the coil(s), and which is primarily designed to perform the dual function of closing the circuit of a STARTER, ENGINE, ELECTRICAL and actuating the starter engaging mechanism. It must have provisions for attaching the mechanical linkage for actuating the engaging mechanism if the linkage is not included. May have provisions for manual actuation. Without contacts this item is known as a SOLENOID, ELECTRICAL. Without provisions for attaching mechanical linkage this item is known as a RELAY, ELECTROMAGNETIC. See also SWITCH, ENGINE STARTER, ELECTRICAL.
What is an Engine Generator Regulator? 502 Items: An Engine Generator Regulator (REGULATOR,ENGINE GENERATOR) is a regulator designed to automatically maintain the current and/or voltage output of an engine generator within specified limits, regardless of variation of load or input voltages. May include cutout relay. Does not include items in which regulation is accomplished by transformer action. See also REGULATOR, CURRENT and REGULATOR, VOLTAGE.
What is an Ignition Interference Suppressor? 41 Items: An Ignition Interference Suppressor (SUPPRESSOR,IGNITION INTERFERENCE) is an insulated cylindrical body, either straight or angular, containing a fixed resistance element, and usually with quick-disconnect type terminals, specifically constructed so that when connected in a high tension electrical ignition system it will reduce interference resulting from arcing of spark plugs, and similar devices. Excludes RESISTOR (as modified) and SUPPRESSOR, PARASITIC. See also FILTER, RADIO FREQUENCY INTERFERENCE.
What is an Engine Generator Cutout Relay? 29 Items: An Engine Generator Cutout Relay (CUTOUT RELAY,ENGINE GENERATOR) is a device for automatically opening the circuit between an engine generator and the battery of the engine electrical system to prevent the flow of reverse current to the generator and automatically closing the circuit when the voltage of the generator reaches normal range. Excludes REGULATOR, CURRENT and RELAY (as modified).
ADAPTER,SPARK PLUG 14 Items
What is a Glow Plug? 256 Items: A Glow Plug is an item with a resistance type heating element for igniting fuel-air mixtures in ENGINE, DIESEL. Used for starting engines only. Excludes SPARK PLUG.
What is an Engine Accessory Generator? 1128 Items: An Engine Accessory Generator (GENERATOR,ENGINE ACCESSORY) is a generator primarily designed to be mounted on an internal combustion engine, and to be driven by the engine to keep the battery in a charged condition. May also supply current for the engine ignition system and/or electrical equipment which is connected to the battery circuit. Includes alternating current generators designed for use with a rectifier. Excludes the major generator of "GENERATING SETS". For generators specifically designed for aircraft use and not mounted on the engine, see GENERATOR, DIRECT CURRENT.
What is an Electrical Engine Starter Switch? 166 Items: An Electrical Engine Starter Switch (SWITCH,ENGINE STARTER,ELECTRICAL) is a manually operated item specifically designed to close the circuit of a STARTER, ENGINE, ELECTRICAL or the control circuit of its attendant solenoid. It must include a vacuum lock-out mechanism or utilize a switch contact independently mounted on the starter. For switches with integral contacts and no vacuum lock-out, see SWITCH (as modified). See also RELAY-SOLENOID, ENGINE STARTER, ELECTRICAL and STARTER, MOTOR.
What is a Magneto Coil? 76 Items: A Magneto Coil (COIL,MAGNETO) is an item consisting of two individual windings, one upon the other, inductively coupled, having a common iron core, specifically designed to convert the induced primary voltage to high secondary voltage required to ignite combustible mixtures, primarily in internal combustion engines; is a maintenance item for a magneto.
STATOR,ENGINE STARTER 43 Items
ROTOR,MAGNETO 46 Items
What is a Gas Turbine Engine Spark Igniter? 44 Items: A Gas Turbine Engine Spark Igniter (IGNITER,SPARK,GAS TURBINE ENGINE) is an item having one or more electrodes arranged to form an air gap across which an electric spark is introduced and discharged to ignite fuel and air mixture in an internal combustion engine for the purpose of initial starting only. In engines designed for the single electrode type, two plugs are required within the combustion chamber in proper placement to effect the air gap. An igniter plug differs from a spark plug by always having cooling facilities in the form of holes or slots in the plug casing to allow entry of air currents around the electrode(s). Excludes SPARK PLUG; GLOW PLUG and ELECTRODE.
What is an Armature Support? 18 Items: An Armature Support (SUPPORT,ARMATURE) is an item which consists of a mechanical or structural part designed to overcome the force of gravity, but is not intended to be the principal substaining member of an armature.
What is an Ignition Terminal Sleeve? 17 Items: An Ignition Terminal Sleeve (SLEEVE,IGNITION TERMINAL) is an item consisting of an electrically insulated body, tubular in shape with provisions for insertion of wire. One end contains a spring to facilitate electrical contact and provisions for attaching a conductor. See also SUPPRESSOR, IGNITION INTERFERENCE. Excludes CLIP, ELECTRICAL; TERMINAL, LUG and CABLE NIPPLE, ELECTRICAL.
What is an Engine Generator Stator? 161 Items: An Engine Generator Stator (STATOR,ENGINE GENERATOR) is a stator which is a maintenance part of a GENERATOR, ENGINE ACCESSORY.
What is an Engine Starter-Generator Stator? 14 Items: An Engine Starter-Generator Stator (STATOR,STARTER-GENERATOR,ENGINE) is a stator which is a maintenance part of a STARTER-GENERATOR, ENGINE.
What is an Electrical Engine Starter Parts Kit? 147 Items: An Electrical Engine Starter Parts Kit (PARTS KIT,ELECTRICAL ENGINE STARTER) is a parts kit for a STARTER, ENGINE, ELECTRICAL. Excludes PARTS KIT, ELECTRICAL CONTACT BRUSH HOLDER and BRUSH SET, ELECTRICAL CONTACT.
What is an Engine Generator Parts Kit? 172 Items: An Engine Generator Parts Kit (PARTS KIT,ENGINE GENERATOR) is excludes PARTS KIT, ELECTRICAL CONTACT BRUSH HOLDER and BRUSH SET, ELECTRICAL CONTACT.
PARTS KIT,ENGINE GENERATOR REGULATOR 18 Items
What is an Ignition Distributor Parts Kit? 82 Items: An Ignition Distributor Parts Kit (PARTS KIT,IGNITION DISTRIBUTOR) is excludes CONTACT SET, DISTRIBUTOR.
PARTS KIT,IGNITION MAGNETO 66 Items
What is a Starting Coil? 22 Items: A Starting Coil (COIL,STARTING) is an item designed to increase the output of induction coils, ignition coils or magnetos during engine cranking periods by being connected as an auxiliary inductive load in the primary circuit of the induction coil, ignition coil or magneto. The increase is due to an induced current surge when the current is interrupted by another item such as timer, distributor or vibrator. It does not include a vibrator but may include relays, resistors and capacitors. Includes single and multiple units.
What is a Nonimmersion Type Electrical Heating Element? 12 Items: A Nonimmersion Type Electrical Heating Element (HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE) is an electrical device in the form of a resistor consisting of a resistance wire, an insulating material, and may be sheathed. Includes infrared elements. It is designed to transform electrical current into heat. It may include an automatic control to regulate the amount of heat generated.
What is a Neutral Start Safety Switch? 100 Items: A Neutral Start Safety Switch (SWITCH,SAFETY,NEUTRAL START) is an item designed to prevent engine starting unless the automatic transmission is in a neutral or locked position. The item is mounted on or near a gear shifting mechanism and is mechanically actuated. It may include wires and terminal connectors.
PARTS KIT,SOLENOID PLUNGER 16 Items
PARTS KIT,STARTER DRIVE 53 Items
What is a Belt Tension Adjusting Arm? 160 Items: A Belt Tension Adjusting Arm (ARM,ADJUSTING,BELT TENSION) is an item of rigid construction designed to be firmly attached at one end and slotted at the other end. It is used to facilitate tension adjustment of the drive belt on automotive type generators or other belt driven accessories.
What is an Ignition Armature? 15 Items: An Ignition Armature (ARMATURE,IGNITION) is a circular device attached to the inside of a distributor shaft or base. Designed to interrupt the circuit between the armature spoke and the magnetic pick-up coil. Contains the same number of teeth or spokes equal to the number of engine cylinders. It is a component of a solid state ignition system designed for gasoline powered engines.
What is an Ignition Modulator Assembly? 225 Items: An Ignition Modulator Assembly (MODULATOR ASSEMBLY,IGNITION) is an electronic device containing a transistor and various other electrical control devices designed to turn the current on and off in a primary circuit and automatically control the dwell period. It is a component of a solid state ignition system designed for gasoline powered engines.
What is an Ignition Stator Assembly? 143 Items: An Ignition Stator Assembly (STATOR ASSEMBLY,IGNITION) is an item designed to signal an electronic module to trigger the coil primary circuit. May include items such as magnetic pick-up coil (breakerless), mounting base plate, wires and/or connector(s) and the like. It is a component of a solid state ignition system designed for gasoline powered engines.
What is a Distributor Ignition Control? 11 Items: A Distributor Ignition Control (CONTROL,DISTRIBUTOR IGNITION) is a mechanism designed to control ignition timing of the distributor by vacuum advancement in relation to engine speed requirements. May be linked to the distributor breaker plate or the distributor housing.
What is a Belt-Chain Tension Adjusting Device? 33 Items: A Belt-Chain Tension Adjusting Device (ADJUSTING DEVICE,BELT-CHAIN TENSION) is a device designed to facilitate the adjustment of drive belt or roller chain tension on belt or chain driven accessories through a hydraulic or spring actuated mechanism. It consists of an adjusting arm, idler pulley or sprocket wheel and other structural parts.
What is an Engine Ignition Lead Set? 120 Items: An Engine Ignition Lead Set (LEAD SET,IGNITION,ENGINE) is consists of two or more LEAD, IGNITION, ENGINE. Specifically designed to accommodate engine electrical ignition systems. Ends must be processed or terminated, with or without end boots, universal or custom fitted. Excludes LEAD SET, TEST.
What is an Engine Ignition Lead? 456 Items: An Engine Ignition Lead (LEAD,IGNITION,ENGINE) is a single solid or braided conductive wire designed for engine ignition, with or without noise suppression cores. The conductor is composed of metallic materials or such nonmetallic materials as graphite impregnated fibers and plastics. Both ends must be processed or terminated, with or without boots. The lead may be of any size or shape. Includes items with metal braided outer covers and grounding nuts. Excludes LEAD, ELECTRICAL; LEAD, STORAGE BATTERY; and items having attached switches, lampholders, suppressors, resistors, and the like.
What is an Armature Assembly? 40 Items: An Armature Assembly is the rotating part of an electrical rotating machine which consists of the ARMATURE (as modified) and bearings mounted on a common shaft.
What is a Rotor Assembly? 104 Items: A Rotor Assembly is the rotating part of an electrical rotating machine which consists of a ROTOR (as modified) and bearings mounted on a common shaft.
What is an Armature-Rotor Assembly? 14 Items: An Armature-Rotor Assembly is the rotating parts of an electrical rotating machine which consists of an ARMATURE (as modified), ROTOR (as mofified) and bearings mounted on a common shaft. See also ARMATURE ASSEMBLY, and ROTOR ASSEMBLY.
What is an Engine Accessories Modification Kit? 26 Items: An Engine Accessories Modification Kit (MODIFICATION KIT,ENGINE ACCESSORIES) is an item or group of items employed to modify all engine accessories.
What is an Emission Control Engine Coolant Temperature Sensor? 12 Items: An Emission Control Engine Coolant Temperature Sensor (SENSOR,ENGINE COOLANT TEMPERATURE,EMISSION CONTROL) is a metallic and/or non-metallic device with various ports on one end and a wrenching facility between ends. The opposite end may be threaded and contain a temperature probe. It is normally located on the upper engine block, on the water jacket or screwed into the upper radiator tank. Depending on individual temperature calibration it opens or closes various ports in order to channel manifold vacuum to devices which activate, de-activate or modify functions in fuel economy, cold temperature override, thermal ignition control, exhaust gas recirculation and other systems by sensing engine water temperature.
What is an Electrical Terminal Block? 357 Items: An Electrical Terminal Block (TERMINAL BLOCK,ELECTRICAL) is an item consisting of insulating material, which is specifically designed to have fastened terminals such as threaded screws and/or studs. Item may include embedded capacitors, attached ground wire, and mounting facilities. It is a component part of a STARTER-GENERATOR, ENGINE. Excludes TERMINAL BOARD; and TERMINAL JUNCTION BLOCK, SECTIONAL.
What is a Nonaircraft Engine Starter-Generator? 58 Items: A Nonaircraft Engine Starter-Generator (STARTER-GENERATOR,ENGINE,NONAIRCRAFT) is a rotating machine which is an accessory to and directly cranks a nonaircraft engine and subsequently generates direct current. The generator and starter action is not simultaneous. See also STARTER,ENGINE,ELECTRICAL and GENERATOR,ENGINE ACCESSORY. Excludes STARTER-GENERATOR,ENGINE,AIR TURBINE DRIVEN.
What is an Ignition Distributor Cam? 20 Items: An Ignition Distributor Cam (CAM,IGNITION DISTRIBUTOR) is an item designed to convert rotary motion into reciprocating motion for the purpose of opening and closing electrical contacts in an ignition distributor.
What is a Magneto Cam? 12 Items: A Magneto Cam (CAM,MAGNETO) is an item designed to convert rotary motion into reciprocating motion for the purpose of opening and closing electrical contacts in a magneto.
What is a Magneto Coupling? 30 Items: A Magneto Coupling (COUPLING,MAGNETO) is an item specifically designed to couple or connect a magneto to a prime mover. Provides spark retardation and increased rotor acceleration during engine cranking period by means of momentary spring initiated impulses. Functions as a drive coupling at engine speed. It may include accessories such as key, setscrew or retainer(s).
What is an Electrical Starter Engine Drive? 356 Items: An Electrical Starter Engine Drive (DRIVE,ENGINE,ELECTRICAL STARTER) is an item designed to transmit the torque developed by a starting motor to a reciprocating type internal combustion engine for the purpose of starting the engine. Clutching, meshing, and disengaging action may be accomplished either mechanically or by means of inertia.
What is an Electrical Starter Engine Drive Housing? 106 Items: An Electrical Starter Engine Drive Housing (HOUSING,ENGINE DRIVE,ELECTRICAL STARTER) is a machined item designed to support and/or protect the drive mechanism of an engine starter. It may include motor drive end bracket, bearing(s) and retainer(s).
What is a Magneto Housing? 10 Items: A Magneto Housing (HOUSING,MAGNETO) is the outer component of a magneto designed to support the operating mechanism. It may include pole-pieces, magnets, bearings, ventilating louvers and/or mounting facilites.
What is an Ignition Distributor Weight? 12 Items: An Ignition Distributor Weight (WEIGHT,IGNITION DISTRIBUTOR) is a weight, which by centrifugal force, is used to automatically change the position of an electrical contact breaker cam in an ignition distributor.
What is an Ignition Contact Breaker Plate? 56 Items: An Ignition Contact Breaker Plate (PLATE,IGNITION CONTACT BREAKER) is an item generally circular in shape with basic thickness small in relation to the diameter. Includes holes, staked posts and/or protrusions used to position and support the electrical contacts of an ignition system. May include capacitor(s) and electrical contacts.