What is Federal Supply Class 2520?

FSC 2520 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 2520) in the USA for supply items codified in the category of Vehicular Power Transmission Components.

What is NATO Supply Classification Class 2520?

NSC 2520 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 2520 in the USA) for supply items codified in the category of Vehicular Power Transmission Components.

Which Federal Supply Group is FSC 2520 in?

FSC 2520 is in Federal Supply Group (FSG) 25 which contains Vehicular Equipment Components.

Which NATO Supply Classification Group is NSC 2520 in?

NSC 2520is in NATO Supply Classification Group (NSG) 25 which contains Vehicular Equipment Components.

What is a Driving Automotive Axle Assembly?

A Driving Automotive Axle Assembly (AXLE ASSEMBLY,AUTOMOTIVE,DRIVING) is a device suspended between and connecting opposite wheels. It supports the weight of a vehicle, and consists of the housing and axles, and may include the driving differential mechanism.

What is an Automotive Axle Shaft?

An Automotive Axle Shaft (SHAFT,AXLE,AUTOMOTIVE) is a shaft which is a component of AXLE ASSEMBLY, AUTOMOTIVE, DRIVING, used to transmit rotary motion from the differential assembly either directly or indirectly to the wheel hubs. Excludes shafts with a universal joint or a component of a universal joint attached to it.

A Breather is a mechanical device designed to permit a free flow of air into and out of an enclosure, usually used on engine crankcase, vehicular differentials and transmissions, pumps, compressors, and the like. See also CAP, VENT, FUEL STORAGE TANK. excludes VENTALATOR (as modified).

What is a Driving Axle Differential?

A Driving Axle Differential (DIFFERENTIAL,DRIVING AXLE) is an assembly having a pinion, ring gear, and compensating gear cluster, designed to transmit rotating motion to the axle shafts and to compensate for differences in wheel rotation.

What is a Vehicular Clutch Disk?

A Vehicular Clutch Disk (DISK,CLUTCH,VEHICULAR) is a solid circular disk of wire-woven lining material or ceramic and metal substance and the like, molded to one or both sides and fastened directly or indirectly to the center spline or hub, which receives and transmits motion or power by engagement with the pressure plate assembly and the flywheel or the like. Includes dry or wet type disk, and may include damper springs. This item is designed to be used on tanks, automobiles, construction equipment, and the like in conjunction with a CLUTCH ASSEMBLY, FRICTION.

What is a Vehicular Propeller Shaft?

A Vehicular Propeller Shaft (PROPELLER SHAFT,VEHICULAR) is a vehicular item with a yoke on one or both ends. The yoke(s) may include a spider. If only one yoke, the opposite end may have a shaft or tube. For items with a universal joint see PROPELLER SHAFT WITH UNIVERSAL JOINT (as modified). Also see YOKE, UNIVERSAL JOINT (as modified). For rotary wing aircraft, see PROPELLER SHAFT, ROTARY WING AIRCRAFT.

What is a Vehicular Propeller Shaft With Universal Joint?

A Vehicular Propeller Shaft With Universal Joint (PROPELLER SHAFT WITH UNIVERSAL JOINT,VEHICULAR) is a vehicular item with a universal joint on one or both ends. For items with one universal joint, the opposite end may have a yoke, a yoke with a spider, or a shaft. For items without a universal joint see PROPELLER SHAFT (as modified).

What is a Vehicular Universal Joint Yoke?

A Vehicular Universal Joint Yoke (YOKE,UNIVERSAL JOINT,VEHICULAR) is a component of a universal joint designed for vehicular applications. Consists of a fork-like device to accommodate the spider and bearings of a universal joint by various attaching methods. The opposite end must have either a flange, hub, or splined stub shaft which is designed to be attached to a driving or driven member. For items with a shaft, the length of the plain portion must not exceed the length of the splines.

What is a Vehicular Mechanical Transmission?

A Vehicular Mechanical Transmission (TRANSMISSION,MECHANICAL,VEHICULAR) is a vehicular device designed to increase, decrease, and/or reverse the rotation between the drive and driven shaft or shafts. It may or may not include the shifting control mechanism which changes ratios and/or direction of rotation. Excludes TRANSMISSION, CROSS-DRIVE and transmissions with controlled differentials.

Vehicular Power Transmission Components - Korea (KR)

Federal Supply Class (FSC): 2520

NATO Supply Classification Class (NSC): 2520

Federal Supply Group (FSG): 25 Vehicular Equipment Components

NATO Supply Classification Group (NSG): 25 Vehicular Equipment Components

Items Managed by Korea (KR) - NCB is 37

Page 3 of 6

NSN Format for Vehicular Power Transmission Components
Codified by Korea

25	20	37	XXX
Group FSG	Class	NCB	Identifier
FSC Federal Supply Class		NIIN
NSN

NATO Supply Class 2520 is a classification within NATO Supply Group 25, which is dedicated to Vehicular Equipment Components. Specifically, Class 2520 focuses on Vehicular Power Transmission Components.

Vehicular Power Transmission Components refer to the various parts and systems that are responsible for transmitting power from the engine to the wheels of a vehicle. These components play a crucial role in ensuring the smooth operation and movement of the vehicle.

Some examples of Vehicular Power Transmission Components that fall under NATO Supply Class 2520 include:

1. Transmissions: These are mechanical devices that transmit power from the engine to the wheels, allowing the vehicle to change gears and transfer torque.

2. Transfer Cases: Transfer cases are used in four-wheel drive and all-wheel drive vehicles to distribute power between the front and rear wheels. They allow for smooth transitions between different driving modes.

3. Axles: Axles are shafts that connect the wheels to the vehicle's transmission or differential. They transmit power from the transmission to the wheels, allowing for rotation and movement.

4. Drive Shafts: Drive shafts are responsible for transmitting torque from the transmission to the wheels. They connect the transmission to the axles and allow for power transfer.

5. Differentials: Differentials are gear mechanisms that allow the wheels to rotate at different speeds while still receiving power from the transmission. They are essential for smooth turning and maneuvering of the vehicle.

These are just a few examples of the Vehicular Power Transmission Components that fall under NATO Supply Class 2520. The classification helps in organizing and categorizing these components for procurement and supply chain purposes within NATO.

FSC 2520 Vehicular Power Transmission Components - Korea (KR)

Includes Transfer Transmission Assemblies; Clutch Assemblies; Universal Joints; Propeller Shafts; Automotive Torque Converters; Power Takeoffs.

Note-The term "vehicular" as delimited for group 25, is applicable to those vehicles and tractors included in groups 23 and 24, construction vehicles included in group 38, and warehouse trucks, tractors, and trailers included in group 39. It does not apply to railway vehicles (group 22), aircraft (group 15), or watercraft (group 19). An item of supply which is a "vehicular" component, within the scope delimited above, is classified in this group regardless of whether it has additional applications on vehicles outside the delimitations for this group.

Frequently Asked Questions(FAQ) for Federal Supply Class 2520

Supply Items Included in Federal Supply Class 2520

Stock Items From Supply Class 2520 Page 3 of 6