Engine Electrical System Components, Aircraft Prime Moving - United States (US)

Federal Supply Class (FSC): 2925

NATO Supply Classification Class (NSC): 2925

Federal Supply Group (FSG): 29 Engine Accessories

NATO Supply Classification Group (NSG): 29 Engine Accessories

Items Managed by United States (US) - NCB is 00 to 09

Page 2 of 34

NSN Format for Engine Electrical System Components, Aircraft Prime Moving
Codified by United States

292501XXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN

NATO Supply Class 2925 refers to Engine Electrical System Components, Aircraft Prime Moving. This class is a part of NATO Supply Group 29, which is specifically for Engine Accessories.

Engine Electrical System Components are essential parts of an aircraft's engine that are responsible for generating, distributing, and controlling electrical power. These components play a crucial role in the overall functioning and performance of the aircraft's engine.

Some examples of Engine Electrical System Components include:

1. Generators: These are responsible for converting mechanical energy from the engine into electrical energy, which is then used to power various electrical systems and components of the aircraft.

2. Starter Motors: These are used to initiate the engine's rotation and provide the necessary power to start the engine.

3. Ignition Systems: These systems are responsible for igniting the fuel-air mixture in the engine's combustion chamber, initiating the combustion process.

4. Voltage Regulators: These components regulate the voltage output from the generator to ensure a stable and consistent supply of electrical power to the aircraft's systems.

5. Electrical Wiring and Connectors: These components provide the necessary electrical connections between various electrical systems and components of the aircraft's engine.

It is important to note that NATO Supply Class 2925 specifically focuses on these components in the context of aircraft prime moving, which refers to the primary power source of the aircraft, typically the engine. These components are designed and manufactured to meet the specific requirements and standards of aircraft engines.

By categorizing these components under NATO Supply Class 2925, it becomes easier for NATO member countries to identify, classify, and procure the necessary engine electrical system components for their aircraft.

FSC 2925 Engine Electrical System Components, Aircraft Prime Moving - United States (US)
FSC 2925 Engine Electrical System Components, Aircraft Prime Moving - United States (US)

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

Excludes Aircraft Lighting Fixtures (FSC 6220); Auxiliary Aircraft Generators (FSC 6115).

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 2925 Frequently Asked Questions(FAQ) for Federal Supply Class 2925

What is Federal Supply Class 2925?
FSC 2925 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 2925) in the USA for supply items codified in the category of Engine Electrical System Components, Aircraft Prime Moving.
What is NATO Supply Classification Class 2925?
NSC 2925 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 2925 in the USA) for supply items codified in the category of Engine Electrical System Components, Aircraft Prime Moving.
Which Federal Supply Group is FSC 2925 in?
FSC 2925 is in Federal Supply Group (FSG) 29 which contains Engine Accessories.
Which NATO Supply Classification Group is NSC 2925 in?
NSC 2925 is in NATO Supply Classification Group (NSG) 29 which contains Engine Accessories.

Supply Items Included in Federal Supply Class 2925 Supply Items Included in Federal Supply Class 2925

What is a Distributor Contact Set? 11 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? 69 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? 14 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? 86 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? 18 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? 34 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? 14 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 Motor Armature? 19 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? 21 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? 45 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 11 Items
What is an Electrical Generator Cover? 12 Items
An Electrical Generator Cover (COVER,ELECTRICAL GENERATOR) is excludes COVER, ACCESS; COVER, GENERATOR SET; and COVER, MOTOR-GENERATOR.
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 an Electrical Engine Starter? 87 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? 87 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 an Ignition Distribution Cap? 13 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 an Electrical Engine Starter Motor? 18 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 Engine Generator Regulator? 16 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 Engine Generator Cutout Relay? 11 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).
What is an Engine Accessory Generator? 71 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? 13 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? 20 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 15 Items
Rotor,Magneto 14 Items
What is a Gas Turbine Engine Spark Igniter? 165 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 Engine Generator Stator? 79 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 Ignition Coil Vibrator? 93 Items
An Ignition Coil Vibrator (VIBRATOR,IGNITION COIL) is an item which rapidly interrupts the current to an ignition coil or magneto. It may include capacitor(s), relay(s), and/or resistor(s). It does not include ignition system distributors or timers. For items which perform similar functions, but are a part of ignition coils, see ARMATURE, INDUCTION COIL.
Parts Kit,Exciter Unit 10 Items
What is an Engine Ignition Lead? 142 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? 20 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? 82 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 Electrical Terminal Block? 82 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 an Aircraft Engine Starter-Generator? 60 Items
An Aircraft Engine Starter-Generator (STARTER-GENERATOR,ENGINE,AIRCRAFT) is a rotating machine which is an accessory to and directly cranks an aircraft 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 Electrical Starter Engine Drive? 16 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? 16 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? 15 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.

Stock Items From Supply Class 2925 Stock Items From Supply Class 2925 Page 2 of 34

012295035
BL-7171-1
RNCC: 3 | RNVC: 2
012285800
3047101
RNCC: 3 | RNVC: 2
12331900
RNCC: 5 | RNVC: 9
012242790
3081713-1
RNCC: 3 | RNVC: 2
012169019
360964-1
RNCC: 3 | RNVC: 2
012158233
1518920-101
RNCC: 3 | RNVC: 2
012156625
B505053
RNCC: 3 | RNVC: 2
012152940
23004453
RNCC: 3 | RNVC: 2
012143994
B505054
RNCC: 3 | RNVC: 2
012073312
520542-1-1
RNCC: 3 | RNVC: 2
011976777
10-383160-2
RNCC: 3 | RNVC: 2
011971713
91-364049-5
RNCC: 3 | RNVC: 2
011969940
L0-122
RNCC: 3 | RNVC: 2
011963023
10-721036-2
RNCC: 3 | RNVC: 2
10-721036-2
RNCC: 5 | RNVC: 9
011962984
639AS5002
RNCC: 3 | RNVC: 2
011911813
10-106700-2
RNCC: 3 | RNVC: 2
10-106700-2
RNCC: 5 | RNVC: 2
011870423
LW-M-2410
RNCC: 3 | RNVC: 2
011870422
LW-M-2409
RNCC: 3 | RNVC: 2
011854183
23380
RNCC: 3 | RNVC: 2
011811216
112857
RNCC: 3 | RNVC: 2
112857
RNCC: 5 | RNVC: 9
011750779
3501614-2
RNCC: 3 | RNVC: 2
011712511
7091M97G02
RNCC: 3 | RNVC: 2
7091M97G01
RNCC: 5 | RNVC: 2
011678594
134AV80722-841
RNCC: 3 | RNVC: 2
011665289
3002784-1
RNCC: 3 | RNVC: 2
011664007
3002784-2
RNCC: 3 | RNVC: 2
011664005
3002783-1
RNCC: 3 | RNVC: 2
011664006
3002783-2
RNCC: 3 | RNVC: 2
011664008
3002785-1
RNCC: 3 | RNVC: 2
011644197
784795
RNCC: 1 | RNVC: 3
10-617750-1
RNCC: 3 | RNVC: 3
10-617750-1
RNCC: 5 | RNVC: 9
011555443
19675
RNCC: 3 | RNVC: 2
11703
RNCC: 5 | RNVC: 2
28204
RNCC: 5 | RNVC: 2
2121
RNCC: 5 | RNVC: 2
12616421
RNCC: 7 | RNVC: 2
011490351
9276M37P08
RNCC: 3 | RNVC: 2
9276M37P14
RNCC: 3 | RNVC: 2
10-700390-4
RNCC: 3 | RNVC: 2
9043173-4
RNCC: 3 | RNVC: 2
1156M41P16
RNCC: 5 | RNVC: 2
44785-4
RNCC: 5 | RNVC: 2
44785-4
RNCC: 5 | RNVC: 9
10-700390-4
RNCC: 5 | RNVC: 9
9043173-4
RNCC: 5 | RNVC: 9
011490350
9043173-3
RNCC: 3 | RNVC: 2
9276M37P13
RNCC: 3 | RNVC: 2
9276M37P13
RNCC: 5 | RNVC: 2
9276M37P07
RNCC: 5 | RNVC: 2
10-700390-3
RNCC: 5 | RNVC: 2
9276M37P07
RNCC: 5 | RNVC: 2
9043173-3
RNCC: 5 | RNVC: 9
10-700390-3
RNCC: 5 | RNVC: 9
011484533
RR56416-2
RNCC: 3 | RNVC: 2
011470570
1155M85P03
RNCC: 1 | RNVC: 3
47443
RNCC: 3 | RNVC: 3
47443
RNCC: 5 | RNVC: 9
011410993
9101M52P17
RNCC: 1 | RNVC: 3
10-383900-16C
RNCC: 3 | RNVC: 3
10-383900-16C
RNCC: 5 | RNVC: 9
011403557
23072-313
RNCC: 3 | RNVC: 2
011358367
2179897
RNCC: 3 | RNVC: 2
011338128
C2TZ-12259-A
RNCC: 3 | RNVC: 2
C2TZ-12259-A
RNCC: 3 | RNVC: 9
011232299
23072-305
RNCC: 3 | RNVC: 2
011207547
6043T28P02
RNCC: 1 | RNVC: 2
44515
RNCC: 3 | RNVC: 2
86031-1
RNCC: 5 | RNVC: 9
44515
RNCC: 5 | RNVC: 9
011207535
5043M63G07
RNCC: 3 | RNVC: 2
011057759
3072727-1
RNCC: 3 | RNVC: 2
010996705
5004314B
RNCC: 3 | RNVC: 2
16VP100-75
RNCC: 7 | RNVC: 2
010806381
5410
RNCC: 3 | RNVC: 2
010753762
SBS124
RNCC: 3 | RNVC: 2
010749514
3001430-2
RNCC: 3 | RNVC: 2
010747355
3001430-1
RNCC: 3 | RNVC: 2
010733475
KPT06A16
RNCC: 3 | RNVC: 2
SC5935-0145-5
RNCC: 7 | RNVC: 2
010733478
KPT06A18
RNCC: 3 | RNVC: 2
SC5935-0145-6
RNCC: 7 | RNVC: 2
010700878
M6162/1-1
RNCC: 3 | RNVC: 2
010683261
6285W74P002
RNCC: 3 | RNVC: 2
010555093
97033
RNCC: 3 | RNVC: 2
97033
RNCC: 5 | RNVC: 9
010499616
GS1000
RNCC: 3 | RNVC: 2
4104A10
RNCC: 5 | RNVC: 2
010437103
736416-1
RNCC: 3 | RNVC: 2
010416874
610-1-13
RNCC: 3 | RNVC: 2
134SCAV226-3
RNCC: 7 | RNVC: 2
010389429
EE10522M15
RNCC: 3 | RNVC: 2
010343774
109840
RNCC: 3 | RNVC: 2
109840
RNCC: 5 | RNVC: 9
010290467
M4938M1
RNCC: 3 | RNVC: 2
010181348
550391
RNCC: 3 | RNVC: 2
010181320
17604-21
RNCC: 3 | RNVC: 2
010123162
3500882-1
RNCC: 3 | RNVC: 2
3500882-1
RNCC: 5 | RNVC: 9
010057225
9101M37P56
RNCC: 1 | RNVC: 2
10-390595-1
RNCC: 3 | RNVC: 2
10-390595-1
RNCC: 5 | RNVC: 9
009980145
P12053
RNCC: 3 | RNVC: 2
009875812
19001-10
RNCC: 3 | RNVC: 2
19001-10
RNCC: 5 | RNVC: 9
009815066
130983
RNCC: 3 | RNVC: 2