Miscellaneous Power Transmission Equipment from Italy (IT)

Question 1

What is Federal Supply Class 3040?

Accepted Answer

FSC 3040 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 3040) in the USA for supply items codified in the category of Miscellaneous Power Transmission Equipment.

Question 2

What is NATO Supply Classification Class 3040?

Accepted Answer

NSC 3040 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 3040 in the USA) for supply items codified in the category of Miscellaneous Power Transmission Equipment.

Question 3

Which Federal Supply Group is FSC 3040 in?

Accepted Answer

FSC 3040 is in Federal Supply Group (FSG) 30 which contains Mechanical Power Transmission Equipment.

Question 4

Which NATO Supply Classification Group is NSC 3040 in?

Accepted Answer

NSC 3040is in NATO Supply Classification Group (NSG) 30 which contains Mechanical Power Transmission Equipment.

Question 5

What is a Push-Pull Control Assembly?

Accepted Answer

A Push-Pull Control Assembly (CONTROL ASSEMBLY,PUSH-PULL) is a control consisting of a wire, wire rope, or a center load rail with ball bearings, within a flexible conduit. One end must have a threaded sleeve for mounting to a wall, bulkhead, or handle, or clevis. It is used to operate or control, either manually or mechanically a mechanical device. It may include such attaching devices as nut(s), washer(s), clevis, bracket(s), and/or the like. For items designed to transmit rotary motion, see SHAFT ASSEMBLY, FLEXIBLE.

Question 6

What is a Multiple Disk Brake?

Accepted Answer

A Multiple Disk Brake (BRAKE,MULTIPLE DISK) is a brake consisting essentially of the following:  a. A brake anchor bracket, also called a carrier assembly, which is the basic unit of the brake. It is designed to be attached to the torque flange of the axle and is also the part upon which the other components of the brake are assembled.  b. A floating hydraulically actuated annular piston, or an equivalent mechanical device, used for applying braking pressure.  c. Metallic disks keyed to rotate with the wheel alternated with nonrotating disks keyed to the anchor bracket. See also BRAKE, SEGMENTED ROTOR.

Question 7

What is a Flexible Shafting?

Accepted Answer

A Flexible Shafting (SHAFTING,FLEXIBLE) is an item consisting of consecutive layers of wire, wound in opposite directions, one upon the other, to obtain extreme flexibility, either with or without an inclosing casing. It is designed to transmit power or to operate remote controls by rotary motion. This is bulk shafting only and does not include flexible shafts with attachments or special terminations.

Question 8

What is a Flexible Shaft Assembly Core?

Accepted Answer

A Flexible Shaft Assembly Core (CORE,FLEXIBLE SHAFT ASSEMBLY) is a specific length of SHAFTING, FLEXIBLE with squared end(s) and/or crimped on tip(s) with or without fittings attached, designed so as to function inside the pliable protective casing of a SHAFT ASSEMBLY, FLEXIBLE.

Question 9

What is a Flexible Shaft Assembly Casing?

Accepted Answer

A Flexible Shaft Assembly Casing (CASING,FLEXIBLE SHAFT ASSEMBLY) is a round, hollow, flexible item made of closely wound wire, plastic, or other flexible material with connections to permit stationary attachment of each end. It is used to protect and guide the core of a SHAFT ASSEMBLY, FLEXIBLE or CONTROL ASSEMBLY, PUSH-PULL.

Question 10

What is a Breather?

Accepted Answer

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).

Question 11

What is a Friction Lining?

Accepted Answer

A Friction Lining (LINING,FRICTION) is a fibrous and/or metallic material with or without binders and/or compounds, cut or molded to a specific size. It may be a segment or a complete lining. It is usually designed to be fastened to a shoe, disk, band, cone, or the like, but may be installed without fastening. It provides a friction surface for transmitting, retarding, or stopping motion. Excludes LINING MATERIAL, FRICTION.

Question 12

What is a Shaft Collar?

Accepted Answer

A Shaft Collar (COLLAR,SHAFT) is an item designed to be mounted around a shaft to limit axial movement of the shaft and/or its assembled parts. It is secured directly to the shaft by use of a setscrew(s), pin(s), or the like, which may be a part of the item of supply. A pilot hole drilled in or through the wall(s) for drilling and pinning at application may be considered a method of securing. Solid items have a bearing surface on one or both end(s) perpendicular to the axis. For items designed to be mounted around the extended hub portion of a mounted item on a shaft or clamp around a shaft, see CLAMP, HUB. See also BEARING, SLEEVE; BUSHING, SLEEVE; SPACER, SLEEVE; and COUPLING, SHAFT, RIGID.

Question 13

What is a Ball Joint?

Accepted Answer

A Ball Joint is an item in which the end of one member is partly spherical and fits into a corresponding spherical cavity in the other member, thus permitting a relative angular movement. Excludes items specifically designed for vehicular steering and torsion application.

Question 14

What is a Worm Shaft?

Accepted Answer

A Worm Shaft is a drive shaft having helical thread(s) on a portion of its outer surface, machined bearing surface(s) and facilities for driving (other than a hub) on one or both ends of shaft. Designed to mate with a cam, gear sector, worm wheel, etc. Includes items with bearings. Excludes items having more than one worm complement of helical threads, items with a separate complement of gear teeth, and GEAR, WORM.

Question 15

What is a Flexible Casing End Fitting?

Accepted Answer

A Flexible Casing End Fitting (END FITTING,FLEXIBLE CASING) is a fitting designed to be secured to the ends of a CASING, FLEXIBLE SHAFT ASSEMBLY to provide a means by which the casing can be attached to the housing of the driving or driven members, either directly or by a coupling nut, or the like. See also FERRULE, ELECTRICAL CONDUIT.

Question 16

What is a Flexible Shaft Assembly?

Accepted Answer

A Flexible Shaft Assembly (SHAFT ASSEMBLY,FLEXIBLE) is an item consisting of a casing with fittings and attachments on each end and a spirally wound wire core with formed end(s) and/or crimped on end fittings. It is designed to transmit rotary motion around bends from a motor or other power source to drive various types of equipment, such as tachometers, speedometers, remote controls, instruments, and the like, which are located at an angle and/or distance from the power source. See also CONTROL ASSEMBLY, PUSH-PULL.

Question 17

What is a Shaft Retaining Plate?

Accepted Answer

A Shaft Retaining Plate (PLATE,RETAINING,SHAFT) is a round, square, or rectangular comparatively flat item having a centrally located hole, designed to accommodate and/or support a shaft. It must have drilled and/or tapped holes for mounting purposes. Excludes RETAINER, PACKING; END BELL, ELECTRICAL ROTATING EQUIPMENT.

Question 18

What is a Flexible Drive Shaft?

Accepted Answer

A Flexible Drive Shaft (SHAFT,DRIVE,FLEXIBLE) is an item consisting of a flexible metal rod or SHAFTING, FLEXIBLE with specific terminations, specifically designed to transmit power, operate remote controls, and the like. For items designed to be inclosed in a casing, see CORE, FLEXIBLE SHAFT ASSEMBLY; see also COUPLING, SHAFT, FLEXIBLE.

Question 19

What is a Flexible Control Casing?

Accepted Answer

A Flexible Control Casing (CASING,FLEXIBLE CONTROL) is a round, hollow, flexible item made of closely wound wire which may have a covering. It is used to serve as a guide and support for push-pull or rotating types of controls for various devices. See also HOSE, METAL. For items with end connections, see CASING, FLEXIBLE SHAFT ASSEMBLY.

Question 20

What is a Hydraulic Accumulator?

Accepted Answer

A Hydraulic Accumulator (ACCUMULATOR,HYDRAULIC) is an accumulator in which liquids are stored under pressure for momentary energy in a hydraulic system. Excludes ACCUMULATOR, HYDRAULIC, SQUIB ACTUATED.

Question 21

What is a Rigid Connecting Link?

Accepted Answer

A Rigid Connecting Link (CONNECTING LINK,RIGID) is an item of various cross-sectional shapes which may be of solid or hollow construction. It is specifically designed for attachment to a lever(s) and/or control(s) to actuate various remote mechanisms. It is one of the following: (1) A one-piece item with or without eyes and/or holes in each end which may have bushings or bearings pressed in the eyes; (2) A one-piece item with both ends processed for terminations, excluding threaded end(s); (3) A two-piece construction type item consisting of a body with both ends processed for terminations and a single end attachment; or (4) A three-piece construction type item consisting of a body and two end attachments. Excludes internal combustion engine type piston connecting rods; DRAG LINK, STEERING; LINK, ANCHOR, BRAKE SHOE; TIE ROD, STEERING; and TURNBUCKLE. For cylindrical shaped externally threaded items without end attachments, see ROD, THREADED END and STUD (as modified).

Question 22

What is a Linear Actuating Cylinder?

Accepted Answer

A Linear Actuating Cylinder (CYLINDER,ACTUATING,LINEAR) is a cylinder designed to house a piston and other necessary component parts of a CYLINDER ASSEMBLY, ACTUATING, LINEAR. Do not use if a more specific name applies.

Question 23

What is a Nonrotating Shaft Eye Bracket?

Accepted Answer

A Nonrotating Shaft Eye Bracket (BRACKET,EYE,NONROTATING SHAFT) is a rigid metal item usually fabricated from steel castings and/or welded steel pieces and designed with one or more hole(s) in line to accompany and hold, align, or support a nonrotating mechanical shaft. It has mounting holes for fastening to a supporting member or main body. It may have provision to accommodate a pin or threaded fastener to hold the shaft in a fixed position.

Question 24

What is a Rotating Shaft Eye Bracket?

Accepted Answer

A Rotating Shaft Eye Bracket (BRACKET,EYE,ROTATING SHAFT) is a rigid metal item usually fabricated from steel castings and/or welded steel pieces and designed with one or more hole(s) in line to accompany and hold, align, or support a mechanical shaft that rotates through an arc not to exceed 360 degrees (6.282 radians). It may have provision to accommodate a bushing or sleeve but usually it has a straight drilled shaft-support hole. Mounting holes are provided for attaching to a supporting member or main body. Excludes HOUSING, BEARING UNIT (as modified).

Question 25

What is a Remote Control Lever?

Accepted Answer

A Remote Control Lever (LEVER,REMOTE CONTROL) is a rigid item usually in the form of an arm of various shapes and cross sections, containing two or more holes so spaced that one serves as a pivot with or without hubs and must have a definite means for securing to a shaft (such as threaded hole for set-screw, keyway(s), splines, serrations or some clamping device). The other hole(s) connect(s) to CONNECTING LINK, RIGID; WIRE ROPE ASSEMBLY, SINGLE LEG; or CLEVIS, ROD END; to provide transmission of movement to other parts of the mechanism. See also BELL CRANK. For manually operated items see LEVER, MANUAL CONTROL.

Question 26

What is a Pawl?

Accepted Answer

A Pawl is a catching device of various shapes and cross sections, which permits motion in only one direction. Designed to engage the teeth or notches of a sector, quadrant, ratchet wheel, or the like. Item is so pivoted that the angle of approach to the interdental engagement causes it to rest more firmly as the reverse load is increased. Item may be spring actuated to cause engagement. Excludes CAM (as modified).

Question 27

What is a Straight Shaft?

Accepted Answer

A Straight Shaft (SHAFT,STRAIGHT) is a straight shaft having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (o.o25 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove (s), keyway(s), splines, threads, or holes. It is not designed for use in aligning by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see GEARSHAFT (as modified). For items designed to support rotating members see AXLE(1), STRAIGHT. For items not having the above conditions see PIN, STRAIGHT, HEADLESS. For items having machined ends which constitute steps see SHAFT(1), SHOULDERED; AXLE(1), SHOULDERED; and BOLT, FLUID PASSAGE.

Question 28

What is a Bell Crank?

Accepted Answer

A Bell Crank is an item in the form of two arms at an angle, having its fulcrum at the apex of the angle, and used to provide a means of changing the direction or varying the intensity of a pushing or pulling force. See also ARM (as modified); and LEVER (as modified).

Question 29

What is a Shouldered Shaft?

Accepted Answer

A Shouldered Shaft (SHAFT,SHOULDERED) is a shaft having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers) arithmetical average (AA), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or shoulders may be machined to accommodate bearings, couplings, and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to support rotating members see AXLE(1), SHOULDERED. For items not having any of the above conditions see PIN, SHOULDER, HEADLESS. Excludes SHAFT(1), STRAIGHT; and AXLE(1), STRAIGHT.

Question 30

What is a Hub Clamp?

Accepted Answer

A Hub Clamp (CLAMP,HUB) is an item designed to be mounted around the extended hub portion of a gear, wheel, or the like, to retain it securely to a shaft by compressing the slotted hub body. The item may also be used to clamp around a shaft, or the like, to prevent end motion or to retain it in position. Its compression quality is derived from a screw(s) or bolt(s) which may be a part of the item of supply. For items designed to secure directly to a shaft by use of setscrews, pins, or the like, see COLLAR, SHAFT. Excludes CLAMP, LOOP.

Question 31

What is a Body Hub?

Accepted Answer

A Body Hub (HUB,BODY) is a cylindrical shoulder type item designed to be mounted and secured directly on a shaft or axle to position and retain on its body a gear(s), wheel(s), or the like. Items must have a method of securing directly to the shaft; however, a pilot hole drilled in or through the wall of the shoulder may be considered a method of securing; or by compressing the slotted hub end on the shaft by a hub clamp, which may or may not be included. Excludes BEARING, SLEEVE; BUSHING, SLEEVE; and COLLAR, SHAFT.

Question 32

What is a Linear Actuating Cylinder Assembly Parts Kit?

Accepted Answer

A Linear Actuating Cylinder Assembly Parts Kit (PARTS KIT,LINEAR ACTUATING CYLINDER ASSEMBLY) is a collection of various o-rings, seals, sleeves, wear rings and gaskets to repair actuating cylinders. May include cylinder and mounting hardware.

Question 33

What is a Brake Shoe?

Accepted Answer

A Brake Shoe is a metal item in the shape of an arc, with or without a replaceable friction lining on the surface of the shoe arc. When actuated by a cam, lever and/or hydraulic cylinder, it exerts pressure on a drum or wheel. Also, see BRAKE, SHOE TYPE.

Question 34

What is a Linear Actuating Cylinder Assembly?

Accepted Answer

A Linear Actuating Cylinder Assembly (CYLINDER ASSEMBLY,ACTUATING,LINEAR) is a cylinder containing a piston and other component parts designed to develop linear motion required to operate a given object(s) with energy generated from either pneumatic or hydraulic pressure(s). See also CYLINDER, ACTUATING, LINEAR. Do not use if a more specific name applies.

Question 35

What is a Counterbalance Weight?

Accepted Answer

A Counterbalance Weight (WEIGHT,COUNTERBALANCE) is a weight designed to overcome static and/or dynamic unbalance of a rotating part or a rotating assembly. It may be of various shapes and designs.

Question 36

What is a Piston Rod Guide?

Accepted Answer

A Piston Rod Guide (GUIDE,PISTON ROD) is an item with an axial hole through which a piston rod slides. It may have coaxial holes to permit the free flow of hydraulic fulid, and the like. The fluid flow holes may permit the use of a spanner wrench to install the item. Excludes BUSHING, MACHINE THREAD.

Question 37

What is a Straight Axle?

Accepted Answer

A Straight Axle (AXLE,STRAIGHT) is a straight axle having two or more of the following conditions: a specified surface finish designation in the range of 1 to 125 microinches (0.025 to 3.2 micrometers), arithmetical average (aa), machined peripheral flat(s), circular groove(s), keyway(s), splines, threads, or holes. It is not designed for use in aliging by fitting into corresponding holes of another item. It may be drilled for lubricating holes. For items having an integral gear(s) or worm(s), see GEARSHAFT (as modified). For items not having the above conditions see PIN, STRAIGHT, HEADLESS. For items used to transmit motion see SHAFT, STRAIGHT. For items having machined ends which constitute steps see AXLE(1), SHOLDERED. Excludes SHAFT(1), SHOULDERED; and BOLT, FLUID PASSAGE.

Question 38

What is a Shouldered Axle?

Accepted Answer

A Shouldered Axle (AXLE,SHOULDERED) is an axle having two or more different diameters (greater than 0.031 inches (0.79 millimeter)) along its length. It must have one or more of the following conditions: a specified surface finish designation in the range 1 to 125 microinches (0.025 to 3.2 micrometers), periphersl flat(s), circular groove(s), keyway(s), splines, threads, or holes. The ends and/or sholders may be machined to accommodate bearings couplings and the like. It is not designed for use in aligning by fitting into corresponding holes of another item. For items used to transmit motion see SHAFT(1), SHOULDER. For items not having any of the above conditions see PIN, SHOULDER, HEADLESS. Excludes SHAFT(1),STRAIGHT; and AXLE(1), STRAIGHT.

Question 39

What is a Shouldered Shaft Assembly?

Accepted Answer

A Shouldered Shaft Assembly (SHAFT ASSEMBLY,SHOULDERED) is an assembly which consists of a SHAFT, SHOULDERED and components such as couplings, flanges, and the like.  The shaft and components are usually welded together.

Question 40

What is a Housing Adapter?

Accepted Answer

A Housing Adapter (ADAPTER,HOUSING) is an item which allows another item to be attached to one of a different size or to a mount, bulkhead, wall, and the like. It may protect the joint/union formed by shafts or connectors which project beyond the respective items. Different mounting hole arrangements permit attachment to each item.

Question 41

What is a Manual Control Lever Assembly?

Accepted Answer

A Manual Control Lever Assembly (LEVER ASSEMBLY,MANUAL CONTROL) is two or more LEVER, MANUAL CONTROL on a common mounting designed to manually actuate and/or regulate a variety of mechanisms.

Question 42

What is a Control Cam?

Accepted Answer

A Control Cam (CAM,CONTROL) is an irregularly shaped item, that revolves around an axis, or slides within limits, which actuates other parts by contact to change the direction, speed and/or timing of a part in motion. A shaft is not included. It usually is part of a CAMSHAFT (as modified).

Question 43

What is an Inertia Damper?

Accepted Answer

An Inertia Damper (DAMPER,INERTIA) is an item specifically designed to be attached to an electrically or mechanically driven shaft for the purpose of retarding speed, and minimizing oscillation, vibration and free spinning.

Question 44

What is a Brake Disc?

Accepted Answer

A Brake Disc (DISC,BRAKE) is a flat circular metallic item, a component of a disk type brake used primarily for frictional purposes.

Question 45

What is a Bevel Gearshaft?

Accepted Answer

A Bevel Gearshaft (GEARSHAFT,BEVEL) is a gearshaft with a single complement of bevel gear teeth. For items with more than one complement of teeth, see GEARSHAFT (1),MULTIPLE GEARS. For items specifically designed for an AXLE ASSEMBLY,AUTOMOTIVE DRIVING see SHAFT,AXLE,AUTOMOTIVE.

Question 46

What is a Bevel-Spur Gearshaft?

Accepted Answer

A Bevel-Spur Gearshaft (GEARSHAFT,BEVEL-SPUR) is a gearshaft with one or more complements of bevel gear teeth and one or more complements of spur gear teeth.

Question 47

What is a Helical Gearshaft?

Accepted Answer

A Helical Gearshaft (GEARSHAFT,HELICAL) is a gearshaft with a single complement of helical gear teeth. For items with more than one complement of teeth, see GEARSHAFT (1), MULTIPLE GEARS.

Question 48

What is a Helical-Spur Gearshaft?

Accepted Answer

A Helical-Spur Gearshaft (GEARSHAFT,HELICAL-SPUR) is a gearshaft with one or more complements of helical gear teeth and one or more complements of spur gear teeth.

Question 49

What is a Spur Gearshaft?

Accepted Answer

A Spur Gearshaft (GEARSHAFT,SPUR) is a gearshaft with a single complement of spur gear teeth. For items with more than one complement of teeth, see GEARSHAFT (1), MULTIPLE GEARS.

Question 50

What is a Worm Wheel Gearshaft?

Accepted Answer

A Worm Wheel Gearshaft (GEARSHAFT,WORM WHEEL) is a gearshaft with a single complement of worm wheel gear teeth. For items with more than one complement of theeth, see GEARSHAFT (1), MULTIPLE GEARS.

Question 51

What is a Mechanical Drive Housing?

Accepted Answer

A Mechanical Drive Housing (HOUSING,MECHANICAL DRIVE) is an item fabricated from a single, internally cored casting, or composed of two or more separate castings, and designed to position and protect bearings, shafts, gears, and/or other components required for a mechanical drive. Includes items having access hole(s) to facilitate machining and assembling of components. It may include the access hole cover plate(s).

Question 52

What is a Manual Control Lever?

Accepted Answer

A Manual Control Lever (LEVER,MANUAL CONTROL) is a rigid item of various shapes and cross-sections, specifically designed to manually actuate and/or regulate a variety of mechanisms. It usually has an integral handgrip, knob, or the like, or provisions for the mounting of the same. It may have accommodations for locking and/or positioning. The point of fulcrum may be an integral shaft perpendicular to the axis or a through hole to provide a definite means of securing, and usually has additional accommodation(s) for attachment of CONNECTING LINK,RIGID; WIRE ROPE ASSEMBLY,SINGLE LEG; and CLEVIS,ROD END; and the like.  Excludes ARM (as modified); LEVER,REMOTE CONTROL; AND BELL CRANK.

Question 53

What is a Linear Actuating Cylinder Cap?

Accepted Answer

A Linear Actuating Cylinder Cap (CAP,LINEAR ACTUATING CYLINDER) is an item designed to attach to and enclose the cylinder bore of a linear actuating cylinder opposite the actuating end. It may have facilities for mounting the actuating cylinder assembly. The item may include ports, valves, and the like. For items on the actuating end, see HEAD, LINEAR ACTUATING CYLINDER.

Question 54

What is a Linear Actuating Cylinder Piston?

Accepted Answer

A Linear Actuating Cylinder Piston (PISTON,LINEAR ACTUATING CYLINDER) is a cylindrical item which moves or reciprocates in a linear actuating cylinder to convert fluid energy to mechanical force.  It may include an integral rod.

Question 55

What is a Linear Actuating Cylinder Piston Rod?

Accepted Answer

A Linear Actuating Cylinder Piston Rod (ROD,PISTON,LINEAR ACTUATING CYLINDER) is a cylindrical item with one end designed to mate with the piston of a linear actuating cylinder. The external end is designed for the attachment of a connection or the connection may be an integral part of the rod. The rod is designed to extend through a linear actuating cylinder cap, or the like.

Question 56

What is a Differential Gear Unit?

Accepted Answer

A Differential Gear Unit is an arrangement of gears in an epicyclic train that connects two shafts in the same line. The driving force is equally divided between the shafts which rotate in different directions with one shaft permitted to revolve faster than the other.

Miscellaneous Power Transmission Equipment - Italy (IT)

Federal Supply Class (FSC): 3040

NATO Supply Classification Class (NSC): 3040

Federal Supply Group (FSG): 30 Mechanical Power Transmission Equipment

NATO Supply Classification Group (NSG): 30 Mechanical Power Transmission Equipment

Items Managed by Italy (IT) - NCB is 15

Page 2 of 17

NSN Format for Miscellaneous Power Transmission Equipment
Codified by Italy

Frequently Asked Questions(FAQ) for Federal Supply Class 3040

Supply Items Included in Federal Supply Class 3040

Stock Items From Supply Class 3040 Page 2 of 17