Compressors and Vacuum Pumps from United Kingdom (UK)

Question 1

What is Federal Supply Class 4310?

Accepted Answer

FSC 4310 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 4310) in the USA for supply items codified in the category of Compressors and Vacuum Pumps.

Question 2

What is NATO Supply Classification Class 4310?

Accepted Answer

NSC 4310 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 4310 in the USA) for supply items codified in the category of Compressors and Vacuum Pumps.

Question 3

Which Federal Supply Group is FSC 4310 in?

Accepted Answer

FSC 4310 is in Federal Supply Group (FSG) 43 which contains Pumps and Compressors.

Question 4

Which NATO Supply Classification Group is NSC 4310 in?

Accepted Answer

NSC 4310is in NATO Supply Classification Group (NSG) 43 which contains Pumps and Compressors.

Question 5

What is a Reciprocating Compressor?

Accepted Answer

A Reciprocating Compressor (COMPRESSOR,RECIPROCATING) is a positive displacement compressor designed to compress air or gas from an initial intake pressure to a higher discharge pressure by means of reciprocating piston(s) in cylinder(s). It is designed to be driven by an independent power source, such as an electric motor, gasoline or diesel engine, or the like. It does not include the prime mover, air storage tank, and the like. It may include various peripheral components, such as drive pulley, unloader, and the like.

Question 6

What is an Intake Air Cleaner?

Accepted Answer

An Intake Air Cleaner (AIR CLEANER,INTAKE) is a device designed to prevent foreign particles from entering the air intake system of an internal combustion engine or air compressor. Excludes mufflers.

Question 7

What is a Dirt And Liquid Deflector?

Accepted Answer

A Dirt And Liquid Deflector (DEFLECTOR,DIRT AND LIQUID) is an item so shaped as to deflect one or more of the following: dust, dirt, grease, oil, or liquid into a desired direction or away from a particular area. Can be attached to a stationary or with a revolving part.May or may notbe a mechanical device.

Question 8

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 9

What is a Piston Ring?

Accepted Answer

A Piston Ring (RING,PISTON) is a circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes PACKING, PREFORMED; RETAINER, OIL SEAL; RETAINER, PACKING; RING, RETAINING; RING WIPER; and SEAL RING, METAL.

Question 10

What is a Piston Ring Set?

Accepted Answer

A Piston Ring Set (RING SET,PISTON) is two or more complete RING, PISTON grouped for a single piston or for all pistons of an internal combustion engine, air compressor, or the like.

Question 11

What is a Piston Pin?

Accepted Answer

A Piston Pin (PIN,PISTON) is a cylindrically-shaped metal item, usually tubular, designed to form a pivoting connection between the piston and connecting rod of an internal combustion engine, compressor and like items. May include oil sealing or pin retaining plugs. Excludes BUSHING, SLEEVE; PIN, GROOVED, HEADLESS; PIN, STRAIGHT, HEADLESS; and PIN, HOLLOW.

Question 12

What is a Cylinder Sleeve?

Accepted Answer

A Cylinder Sleeve is a tubular metal item designed primarily as a replaceable wear surface within the cylinder bore of a piston type internal combustion engine, compressor, or reciprocating pump.

Question 13

What is a Centrifugal Compressor?

Accepted Answer

A Centrifugal Compressor (COMPRESSOR,CENTRIFUGAL) is a nonpositive displacement compressor designed to compress air or gas from an initial intake pressure to a higher discharge pressure by means of bucketed or finned type rotary impeller(s) inclosed in a housing. It is designed to be driven by an independent power source, such as an electric motor, gasoline or diesel engine, or the like. It does not include the prime mover, air storage tank, and the like. It may include various peripheral components, such as drive pulley, unloader, and the like.

Question 14

What is a Reciprocating Compressor Cylinder?

Accepted Answer

A Reciprocating Compressor Cylinder (CYLINDER,RECIPROCATING COMPRESSOR) is a cylinder designed to compress air or gas from an initial intake pressure to a higher discharge pressure. Excludes cylinder assemblies.

Question 15

What is a Compressor Piston?

Accepted Answer

A Compressor Piston (PISTON,COMPRESSOR) is a cylindrical piece which moves or reciprocates in a cylinder to compress air or gas from an initial intake pressure to a higher discharge pressure. May include integral connecting rod.

Question 16

What is a Reciprocating Compressor Unit?

Accepted Answer

A Reciprocating Compressor Unit (COMPRESSOR UNIT,RECIPROCATING) is an assembled unit consisting of a commonly mounted reciprocating compressor(s) and a prime mover(s). For items with additional equipment which extends the function of the unit beyond the delivery of compressed air or gas, see PNEUMATIC TOOL AND COMPRESSOR OUTFIT, or more specific names, as applicable. Excludes AUXILIARY SET, ENGINE DRIVEN.

Question 17

What is a Rotary Compressor Unit?

Accepted Answer

A Rotary Compressor Unit (COMPRESSOR UNIT,ROTARY) is an assembled unit consisting of a commonly mounted rotary compressor(s) amd a prime mover(s). For items with additional equipment which extends the function of the item beyond the delivery of compressed air or gas, see PNEUMATIC TOOL AND COMPRESSOR OUTFIT, or other more specific names, as applicable. Excludes AUXILIARY SET, ENGINE DRIVEN.

Question 18

What is a Rotary Compressor?

Accepted Answer

A Rotary Compressor (COMPRESSOR,ROTARY) is a positive displacement compressor designed to compress air or gas by means of rotating elements inclosed in a housing. The rotating elements may be classified as (1) Sliding Vane, which is a combination of longitudinal vanes and rotor, (2) Axial Screw, which consists of two or more symmetrically-formed helical rotors mounted on parallel shafts, (3) Two Impeller, which consists of mated lobed impellers, symmetrical in design synchronized by a pair of gears, (4) Liquid Piston, which is a rotor with shrouded vanes wherein water or other liquid is used as a sealing agent. It is designed to be driven by an independent power source such as an electric motor, gasoline or diesel engine, or the like. It does not include the prime mover, air storage tank, and the like. It may include various peripheral components such as drive pulley, unloader, and the like.

Question 19

What is a Reciprocating Vacuum Pump?

Accepted Answer

A Reciprocating Vacuum Pump (VACUUM PUMP,RECIPROCATING) is a vacuum pump used to create extremely low pressure by means of reciprocating element(s) in an enclosure(s). It is designed to be driven manually or by a prime mover which is not an integral part of the pump. It may include a vacuum storage tank(s) and various peripheral components such as driven pulleys.

Question 20

What is a Rotary Vacuum Pump?

Accepted Answer

A Rotary Vacuum Pump (VACUUM PUMP,ROTARY) is a vacuum pump used to create extremely low pressure by means of a rotating element(s) in an enclosure. It is designed to be driven manually or by a prime mover which is not an integral part of the pump. It may include a vacuum storage tank(s) and various peripheral components such as driven pulleys.

Question 21

What is a Rotary Vacuum Pump Unit?

Accepted Answer

A Rotary Vacuum Pump Unit (VACUUM PUMP UNIT,ROTARY) is an assembled unit consisting of a commonly mounted rotary vacuum pump(s), prime mover(s), and the necessary components to provide for a complete operation. It may include vacuum storage tank(s).

Question 22

What is a Compressor Parts Kit?

Accepted Answer

A Compressor Parts Kit (PARTS KIT,COMPRESSOR) is a parts kit used to repair a COMPRESSOR (1),CENTRIFUGAL; COMPRESSOR (1), RECIPROCATING; COMPRESSOR (1), RECIPROCATING AND ROTARY; COMPRESSOR (1), ROTARY. Excludes PART KIT (1), BRAKE AIR COMPRESSOR; PARTS KIT (1), PISTON ASSEMBLY, COMPRESSOR.

Question 23

What is a Valve Head?

Accepted Answer

A Valve Head (HEAD,VALVE) is an item designed to mate with a hydraulic or pneumatic valve body. It must have inlet and/or outlet port(s). For items without ports see CAP (1), VALVE.

Question 24

What is a Special Shaped Pump Diaphragm?

Accepted Answer

A Special Shaped Pump Diaphragm (DIAPHRAGM,PUMP,SPECIAL SHAPED) is an item constructed of one or more layers of thin flexible material, either laminated or separated. It is designed to form a tight seal between the openings of a pump and to transmit pressure inducted motion either directly or through a mechanical linkage. The item may contain bolt holes and&#47;or a center hole. Excludes DIAPHRAGM, VALVE, SPECIAL SHAPED.

Question 25

What is an Exhaust-Intake Pneumatic Muffler?

Accepted Answer

An Exhaust-Intake Pneumatic Muffler (PNEUMATIC MUFFLER,EXHAUST-INTAKE) is a noise control/filtering device of various sizes, shapes, designs, materials (metallic/non-metallic) and varied mounting configurations used to diffuse air blasts, lowers air velocity, reduce noise, filtration of airborne moisture and/or dust contamination, pressure equalization, speed control for air operated devices. For vehicular application see MUFFLER, (as modified).

Question 26

What is an Air Compressor Housing?

Accepted Answer

An Air Compressor Housing (HOUSING,AIR COMPRESSOR) is an airtight housing for the internal mechanism of a machine which increases the pressure of incoming air before releasing it. Bored for related component parts.

Question 27

What is a Valve Stop Plate?

Accepted Answer

A Valve Stop Plate (PLATE,VALVE STOP) is a dish shaped metallic device with varying shaped holes designed to limit the vertical travel of the valve spring components. It may provide a seating surface, while keeping the inlet and/or discharge valve components properly aligned during operation.

Question 28

What is a Reciprocating Compressor Piston Guide Piston?

Accepted Answer

A Reciprocating Compressor Piston Guide Piston (PISTON,PISTON GUIDE,RECIPROCATING COMPRESSOR) is an item which is attached to the connecting rod by means of a piston pin and which is provided with a means for attaching the piston rod assembly. It may have a groove(s) for an oil and/or wiper ring, but it is never designed for compression action.

Question 29

What is a Compressor Valve Plate?

Accepted Answer

A Compressor Valve Plate (VALVE PLATE,COMPRESSOR) is an item of various sizes and shapes, rigid, flat and generally smooth. It is normally located between the top of the body and the head. It may include valve ports, and may be issued with gaskets, washers, springs, bolts, disc and the like.

Question 30

What is a Compressor Compressed Air Cooler?

Accepted Answer

A Compressor Compressed Air Cooler (COOLER,COMPRESSED AIR,COMPRESSOR) is an item designed to lower the temperature of the compressed air by having air flow through pipes immersed in water.

Question 31

What is a Piston Connecting Rod?

Accepted Answer

A Piston Connecting Rod (CONNECTING ROD,PISTON) is a device used for connecting a piston to a crankshaft or to a master connecting rod of an internal combustion engine, steam reciprocating engine, reciprocating air compressor, or the like. The rod may be connected directly to the piston, or it may transmit the motion through a crosshead.

Question 32

What is an Intake Air Cleaner Filter Element?

Accepted Answer

An Intake Air Cleaner Filter Element (FILTER ELEMENT,INTAKE AIR CLEANER) is a replaceable device designed to remove dust, pollen or other foreign matter from the air passing through it. The removal of particles is accomplished by porous material (metallic or non-metallic), wire mesh, or the like. It is designed to fit into an AIR CLEANER,INTAKE.

Question 33

What is a Compressor Crankshaft?

Accepted Answer

A Compressor Crankshaft (CRANKSHAFT,COMPRESSOR) is a rotating member of an air compressor, designed to transmit the linear thrust of a piston&#40;s&#41; and connecting rod assembly&#40;ies&#41; into axial motion.

Question 34

What is a Compressor Cylinder Head?

Accepted Answer

A Compressor Cylinder Head (CYLINDER HEAD,COMPRESSOR) is an item designed to inclose the cylinder bore(s) of an engine block to form a combustion chamber(s). It may have liquid-cooling passage(s) and/or air-cooling fin(s) and may include valve(s), valve guide(s), spring(s), and the like. It is a component part of a COMPRESSOR, RECIPROCATING.

Compressors and Vacuum Pumps - United Kingdom (UK)

Federal Supply Class (FSC): 4310

NATO Supply Classification Class (NSC): 4310

Federal Supply Group (FSG): 43 Pumps and Compressors

NATO Supply Classification Group (NSG): 43 Pumps and Compressors

Items Managed by United Kingdom (UK) - NCB is 99

Page 8 of 28

NSN Format for Compressors and Vacuum Pumps
Codified by United Kingdom

Frequently Asked Questions(FAQ) for Federal Supply Class 4310

Supply Items Included in Federal Supply Class 4310

Stock Items From Supply Class 4310 Page 8 of 28