Space and Water Heating Equipment
Federal Supply Class (FSC: 4520
NATO Supply Classification Class (NSC): 4520
Group Description: Plumbing, Heating, and Waste Disposal Equipment
Federal Supply Group (FSG): 45
NATO Supply Classification Group (NSG): 45
Page 1 of 85
Includes Boilers, 15 pounds WSP and under (for boilers over 15 pounds WSP, see FSC 4410); Domestic Water Storage Tanks through 100 gallon capacity; Fireplace Heaters; Furnaces; Space Heaters; Heating Radiators; Immersion Heaters; Water Heaters, through 100 gallon recovery capacity (for heaters over 100 gallons recovery capacity, see FSC 4410).
Excludes Vehicle Heaters; (FSC 2540); Aircraft Heaters (FSC 1660).
Additional Information for Space and Water Heating Equipment
NATO Supply Class 4520 is a classification within NATO Supply Group 45, which is dedicated to Plumbing, Heating, And Waste Disposal Equipment.
NATO Supply Class 4520 specifically focuses on Space And Water Heating Equipment. This class includes various types of equipment used for heating spaces and water in different settings. It encompasses a wide range of heating devices and systems, such as boilers, furnaces, heaters, radiators, heat pumps, and water heaters.
The equipment classified under NATO Supply Class 4520 is designed to provide heating solutions for both residential and commercial purposes. These heating systems are essential for maintaining comfortable temperatures in buildings, as well as for heating water for various applications, such as bathing, cooking, and cleaning.
It is important to note that NATO Supply Class 4520 is part of the broader NATO Supply Group 45, which covers a wide range of plumbing, heating, and waste disposal equipment. This group includes various classes that focus on different aspects of these equipment categories.
By categorizing equipment into specific supply classes and groups, NATO aims to streamline procurement processes and facilitate efficient logistics management for member nations. This classification system helps ensure that the right equipment is readily available for military and civilian operations within the NATO framework.
NSN by Country
Frequently Asked Questions(FAQ) for Federal Supply Class 4520
- What is Federal Supply Class 4520?
- FSC 4520 is the Federal Supply Class(formally known as NATO Supply Classification Class NSC 4520) in the USA for supply items codified in the category of Space and Water Heating Equipment.
- What is NATO Supply Classification Class 4520?
- NSC 4520 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 4520 in the USA) for supply items codified in the category of Space and Water Heating Equipment.
- Which Federal Supply Group is FSC 4520 in?
- FSC 4520 is in Federal Supply Group(FSG) 45 which contains .
- Which NATO Supply Classification Group is NSC 4520 in?
- NSC 4520 is in NATO Supply Classification Group(NSG) 45 which contains .
Supply Items Included in Federal Supply Class 4520
- What is a Space Heater? 459 Items
- A Space Heater (HEATER,SPACE) is a device designed to burn various types of fuel within an inclosure which protects and confines the fire. It is used for the purpose of raising the temperature of the air in its immediate vicinity. The inclosure may be vented. Excludes HEATER, DUCT TYPE, PORTABLE and HEATER, SPACE, ELECTRIC.
- What is an Electric Space Heater? 2294 Items
- An Electric Space Heater (HEATER,SPACE,ELECTRIC) is a device having a heating element which when connected to an electrical source, directly imparts heat. Circulation of the heated air may be achieved by an integral blower or fan. For space heaters other than electric, see HEATER, SPACE.
- What is a Metal Register? 43 Items
- A Metal Register (REGISTER,METAL) is this previously deleted INC has been reinstated for file maintenance only.
- What is a Heating Radiator? 492 Items
- A Heating Radiator (RADIATOR,HEATING) is a heat transferring unit designed to transfer heat to surrounding air by radiation. The unit is exposed directly to the space served and it is generally connected to some type of heat generating unit, such as a steam or hot water heating boiler, but may have an integral gas or electric heating unit. Excludes HEATER, CONVECTION, STEAM-HOT WATER.
- What is a Heating Radiator Valve? 144 Items
- A Heating Radiator Valve (VALVE,RADIATOR,HEATING) is a valve specifically designed for installation in the supply line of a heating radiator. It has a female inlet and a ground joint union nut with a male iron pipe threaded tailpiece outlet.
- What is a Steam-Hot Water Air Circulating Unit Heater? 85 Items
- A Steam-Hot Water Air Circulating Unit Heater (UNIT HEATER,AIR CIRCULATING,STEAM-HOT WATER) is a heating device which is connected to a central source of hot water or steam, for the purpose of distributing heat, by means of a motor-driven fan, throughout a room or building. By introducing outside air, it may also be utilized for ventilating purposes or a combination of heating and ventilating.
- What is a Low Pressure Heating Boiler? 397 Items
- A Low Pressure Heating Boiler (BOILER,HEATING,LOW PRESSURE) is a unit consisting of a series of metal shells and/or tubes assembled in integral form, utilizing a space enclosed within itself as a combustion chamber for burning fuel. The heat emanating from the burning fuel is absorbed by water circulating through the shells and/or tubes, raising the water temperature to a predetermined degree or changing its physical properties to steam. Excludes high pressure steam boilers over 15 pounds (6.804 kg) gauge working steam pressure.
- What is a Steam Air Venting Valve? 88 Items
- A Steam Air Venting Valve (VALVE,AIR VENTING,STEAM) is an automatic valve designed to relieve, automatically, accumulated air in various types of steam heating systems.
- What is an Electric Water Heater? 823 Items
- An Electric Water Heater (HEATER,WATER,ELECTRIC) is a unit specifically designed for heating water by a direct fired method, utilizing electric heating element(s).
- What is a Gas Water Heater? 62 Items
- A Gas Water Heater (HEATER,WATER,GAS) is a unit specifically designed for heating water by a direct fired method, utilizing a gas fuel burned in a combustion chamber inclosed within itself. May be incorporated with a tank as an integral or as a separate unit for storage of the water so heated.
- What is a Hot Water Storage Tank? 173 Items
- A Hot Water Storage Tank (TANK,HOT WATER STORAGE) is an item formed of metal, cylindrical in shape, with openings for pipe connections. Its primary purpose is to store heated water for distribution to various desired outlets.
- What is a Duct Type Ventilation Heater? 833 Items
- A Duct Type Ventilation Heater (HEATER,VENTILATION,DUCT TYPE) is a heat transferring unit utilizing a separate source of steam or hot water as the heat transfer medium. It consists of finned parallel tubes joined together by a header or headers and is designed for installation in the ducts of a forced air circulating system. It may be provided with a flanged outer casing to facilitate mounting of the unit in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
- What is a Warm Air Furnace? 120 Items
- A Warm Air Furnace (FURNACE,WARM AIR) is a central heating appliance consisting of a combustion chamber and secondary heat transferring surfaces inclosed within a jacket or casing, designed for burning various types of fuel. The resultant heat, being absorbed by air circulated over the heated surfaces by means of gravity or forced air circulation, may be distributed to various rooms of a building by the attachment of ducts and/or pipes. See also HEATER, SPACE.
- What is a Damper Control Quadrant? 30 Items
- A Damper Control Quadrant (QUADRANT,DAMPER CONTROL) is a metal device attached to a damper for the purpose of regulating and locking it in a definite position.
- What is an Immersion Type Electrical Heating Element? 2556 Items
- An Immersion Type Electrical Heating Element (HEATING ELEMENT,ELECTRICAL,IMMERSION TYPE) is an electrical device in the form of a resistor consisting of a resistance wire, an insulating material, and a sheath. It is designed to transform electrical current into heat while immersed in a liquid to be heated or in contact with materials to be melted. It may include an automatic control to regulate the amount of heat generated.
- What is a Liquid Fuel Fired Immersion Heater? 138 Items
- A Liquid Fuel Fired Immersion Heater (HEATER,IMMERSION,LIQUID FUEL FIRED) is a device designed primarily to heat water by immersion in a container.
- What is a Portable Duct Type Heater? 264 Items
- A Portable Duct Type Heater (HEATER,DUCT TYPE,PORTABLE) is a heater equipped with integral connection(s) for attaching duct(s) to direct heat to engine surface, railroad cars, warehouses, tents, and the like. It is equipped with a blower (fan) and must be mounted on skids, wheels, and the like or capable of being hand-carried. Excludes HEATER, SPACE.
- What is a Steam-Hot Water Heated Water Heater? 109 Items
- A Steam-Hot Water Heated Water Heater (HEATER,WATER,STEAM-HOT WATER HEATED) is a unit designed to heat water in a storage tank which is equipped with a coil that receives steam or hot water from another source. See also HEATER, FLUID, INDUSTRIAL.
- What is a Ventilation Duct Terminal? 221 Items
- A Ventilation Duct Terminal (TERMINAL,VENTILATION DUCT) is a fabricated device, generally constructed with a flared end and a straight or elbow type body. It may contain a damper and is designed to be used at the end of a ventilating duct to control the quantity and/or the direction of air flow.
- What is a Warm Air Heating System Humidifier? 89 Items
- A Warm Air Heating System Humidifier (HUMIDIFIER,WARM AIR HEATING SYSTEM) is a device which, when installed in conjunction with a warm air heating system, injects or releases vapor for the purpose of increasing the relative humidity in a room or building. Excludes self-contained air humidifying units.
- What is an Air Conditioning-Heating Pipe Thimble? 10 Items
- An Air Conditioning-Heating Pipe Thimble (THIMBLE,PIPE,AIR CONDITIONING-HEATING) is a tubular ring formed from sheet metal which, when installed in a chimney, forms a tight joint between the pipe and chimney flue.
- What is an Air Conditioning-Heating Tee? 167 Items
- An Air Conditioning-Heating Tee (TEE,AIR CONDITIONING-HEATING) is a fitting having a branch or branches which are fixed at 90 degrees (1.5708 radians) to the run, It may be reducing, straight or conical type; and is used as a junction at the intersection of air conditioning-heating flue pipes or fittings.
- What is a Flue Damper? 387 Items
- A Flue Damper (DAMPER,FLUE) is a cast iron or sheet metal plate designed to be installed in a boiler, heater, stove, or furnace flue pipe to control the draft, and/or in an air duct to control the passage of air. Excludes VALVE, BUTTERFLY.
- What is an Automatic Flue Draft Control? 34 Items
- An Automatic Flue Draft Control (DRAFT CONTROL,FLUE,AUTOMATIC) is an item consisting of a metal frame in which is inserted a flat metal plate mounted on a shaft. The plate, fluctuating automatically according to changes in atmospheric pressure, controls the stack or flue draft and maintains an absolute constancy of draft regardless of varying weather conditions.
- What is an Air Conditioning-Heating Elbow? 531 Items
- An Air Conditioning-Heating Elbow (ELBOW,AIR CONDITIONING-HEATING) is a fitting used to connect two sections of air conditioning-heating flue pipes of the same cross-sectional shape to form an angular turn.
- What is an Air Conditioning-Heating Collar? 92 Items
- An Air Conditioning-Heating Collar (COLLAR,AIR CONDITIONING-HEATING) is a straight formed fitting with identical internal ends, used to form a connection of two air conditioning-heating fittings.
- What is a Flue Cap? 135 Items
- A Flue Cap (CAP,FLUE) is an item designed for attaching to the top of a chimmey or smoke stack to eliminate back draft and create a partial vacuum.
- What is an Air Conditioning-Heating Pipe? 1529 Items
- An Air Conditioning-Heating Pipe (PIPE,AIR CONDITIONING-HEATING) is a shaped product of sheet metal; round, rectangular, or square in cross-sectional shape. It is uniform throughout its length. Used to conduct air or gas fumes from one area to another.
- What is a Hot Water Radiator Air Venting Valve? 27 Items
- A Hot Water Radiator Air Venting Valve (VALVE,AIR VENTING,HOT WATER RADIATOR) is a manually operated device for use in a hot water radiator to relieve accumulated air. It is usually constructed with a needle type disk, and may have a loose key handle or a fixed wheel handle. See also VALVE, ANGLE; VALVE, CROSS; and VALVE, GLOBE.
- What is a Steam-Hot Water Convection Heater? 131 Items
- A Steam-Hot Water Convection Heater (HEATER,CONVECTION,STEAM-HOT WATER) is a heat transferring unit, inclosed in a cabinet, designed to warm a stream of air by convection as it circulates over the heating elements rather than by direct radiation. Excludes RADIATOR, HEATING.
- What is a Stationary Duct Type Heater? 1438 Items
- A Stationary Duct Type Heater (HEATER,DUCT TYPE,STATIONARY) is a device capable of producing heat from gas, liquid fuel, or an electrical heating element designed for permanent installation in sheet metal ducts of a forced air circulating system. It consists of (1) a finned, steel burner tube, a combustion air blower, a control panel, and a constant level fuel supply system or (2) a device having a heating element which when connected to an electrical source, directly imparts heat. It may be provided with a flanged outer casing to facilitate mounting in planned or existing duct work. Circulation of the heated air is achieved by use of a blower or fan not integral with the heating unit.
- What is a Steam And Electric Heated Water Heater? 33 Items
- A Steam And Electric Heated Water Heater (HEATER,WATER,STEAM AND ELECTRIC HEATED) is a unit specifically designed to heat water in a storage tank by means of a coil that receives steam from another source, and, in addition is equipped with auxiliary electric heating element(s).
- Burner Assembly,Space Heater 78 Items
- What is a Space Heater Parts Kit? 48 Items
- A Space Heater Parts Kit (PARTS KIT,SPACE HEATER) is a group of parts used for replacing the worn and/or broken parts of a HEATER, SPACE.
- What is a Liquid Fuel Water Heater? 61 Items
- A Liquid Fuel Water Heater (HEATER,WATER,LIQUID FUEL) is an item designed for heating water by a direct-fired method, using a liquid fuel burned in a combustion chamber inclosed within itself. It may be capable of using more than one type of fuel, such as gasoline, oil, kerosine, or jet fuel. It may be incorporated with a tank as an integral or as a separate unit for storage of the water so heated. For items that use liquefied petroleum gas, see HEATER, WATER, GAS. Excludes sidearm heaters.
- What is a Nonimmersion Type Electrical Heating Element? 9691 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 Portable Humidifier? 83 Items
- A Portable Humidifier (HUMIDIFIER,PORTABLE) is an item which converts water into fine cool vapors by mechanical means. It may be used in a "sick room" with or without medication, or any enclosed area for the purpose of increasing its relative humidity. For items converting water into hot vapor (steam) by means of heat, see VAPORIZER, MEDICINAL.
- What is an Air Conditioning-Heating Adapter? 267 Items
- An Air Conditioning-Heating Adapter (ADAPTER,AIR CONDITIONING-HEATING) is a fitting, tubular at one end and other than tubular at the other end. It is used to connect two sections of air conditioning-heating pipe or to connect air conditioning-heating pipe to air conditioning-heating units.
- What is an Air Conditioning-Heating Lateral? 91 Items
- An Air Conditioning-Heating Lateral (LATERAL,AIR CONDITIONING-HEATING) is a fitting having a branch or branches which are fixed at various angles other than 90 degrees (1.5708 radians) to the run, permitting lines to be taken off laterally from the main line. These laterals may be reducing type.
- What is an Air Conditioning-Heating Reducer? 163 Items
- An Air Conditioning-Heating Reducer (REDUCER,AIR CONDITIONING-HEATING) is a fitting designed to reduce the size of air conditioning-heating flue pipes or fittings.
- What is a Fuel Spark Igniter? 163 Items
- A Fuel Spark Igniter (IGNITER,SPARK,FUEL) 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 mixtures in space heaters, furnaces, and the like. Excludes SPARK PLUG; GLOW PLUG; and ELECTRODE.
- What is an Air Conditioning-Heating Coupling? 76 Items
- An Air Conditioning-Heating Coupling (COUPLING,AIR CONDITIONING-HEATING) is a straight formed fitting with center bead and identical external ends designed to connect two sections of air conditioning-heating pipes.
- What is a Heating Element Parts Kit? 63 Items
- A Heating Element Parts Kit (PARTS KIT,HEATING ELEMENT) is consists of metallic patch(es), wire retainer(s) and the like. Used for patching heating elements.
- Control Box Assembly,Portable Heater,Duct Type 39 Items
- What is a Heating-Cooling Condensate Pumping Unit? 21 Items
- A Heating-Cooling Condensate Pumping Unit (PUMPING UNIT,CONDENSATE,HEATING-COOLING) is an assembled unit consisting of a reciever tank and one or more centrifugal or equal pumps, which are automatically controlled by means of a float switch or manually controlled. The function of this unit is the collection of condensate from a steam heating or cooling system and the return of same directly or indirectly to the boiler or air conditioner to which it is connected.
- What is an Electric Fluid Heater? 185 Items
- An Electric Fluid Heater (HEATER,FLUID,ELECTRIC) is a unit specifically designed for heating fluid by a direct fired method, utilizing electric heating element.
- What is a Portable Duct Type Heater Gasoline Engine Mounting And Air Duct Storage Support? 27 Items
- A Portable Duct Type Heater Gasoline Engine Mounting And Air Duct Storage Support (SUPPORT,GASOLINE ENGINE MOUNTING AND AIR DUCT STORAGE,PORTABLE DUCT TYPE HEATER) is a shaped rigid steel support plate specifically designed to serve as a structural member for mounting a gasoline engine, portable duct type heater and to provide storage for air duct hose.
- What is a Space Heater Baseplate? 27 Items
- A Space Heater Baseplate (BASEPLATE,SPACE HEATER) is a shaped metallic or nonmetallic item designed to accommodate a HEATER (1), SPACE. It may have different angular configurations and may be provided with cutouts, boreholes, ribs, feet and mounting pads.
- What is an Electrical Heating Blanket? 57 Items
- An Electrical Heating Blanket (HEATING BLANKET,ELECTRICAL) is a flexible heating system in blanket form, designed for temperature control under changing ambient conditions. See also HEATING ELEMENT (as modified) and PAD, HEAT TREATMENT.
- What is an Air Register? 292 Items
- An Air Register (REGISTER,AIR) is an item with a grille, designed to affect the proper distribution of cold or heated air to an enclosed area. It may have adjustable blades on the back to regulate and control the flow of air.
- What is an Air Conditioning-Heating Pipe Assembly? 75 Items
- An Air Conditioning-Heating Pipe Assembly (PIPE ASSEMBLY,AIR CONDITIONING-HEATING) is a combination of lengths of pipe and fittings, such as adapters, collars, couplings, elbows, laterals, reducers, tees, and the like, used to conduct air or gas flow from one area to another.
- What is a Duct Type Heater Parts Kit? 32 Items
- A Duct Type Heater Parts Kit (PARTS KIT,HEATER,DUCT TYPE) is a parts kit used for the repair of a heater or the replacement of heater parts
- What is a Steam-Water Heating Unit? 22 Items
- A Steam-Water Heating Unit (HEATING UNIT,STEAM-WATER) is a unit which supplies hot water at an established temperature through a pipe system by means of a heat exchanger, mixing valve, and control valve. Cold water and steam are introduced into the heat exchanger, creating hot water, which, in turn, is mixed again with the cold water in the blending valve to generate a flow of hot water at a preset temperature.
- What is an Assembly Humidifier? 34 Items
- An Assembly Humidifier (HUMIDIFIER,ASSEMBLY) is a device that injects or releases moisture into the air for the purpose of increasing the relative humidity in a room or building. Excludes, HUMIDIFIER, WARM AIR HEATING SYSTEM.
- What is an Exhaust Pipe? 147 Items
- An Exhaust Pipe (PIPE,EXHAUST) is a rigid tubular item designed to direct the exhaust gases away from an engine, heater, or the like. For flexible items, see HOSE, METALLIC.
- What is a Humidifier Assembly Cylinder? 21 Items
- A Humidifier Assembly Cylinder (CYLINDER,HUMIDIFIER ASSEMBLY) is an item serving to produce the vapor in HUMIDIFIER, ASSEMBLY.
Stock Items From Supply Class 4520 Page 1of 85
- 571X-69597-08507
- RNCC: 5 | RNVC: 9 | DAC: 6
- MT0345A
- RNCC: 3 | RNVC: 2 | DAC: 4
- PWA22144-1
- RNCC: 5 | RNVC: 2 | DAC: A
- 001214165 PART 203
- RNCC: 5 | RNVC: 2 | DAC: 2
- ADCP105C
- RNCC: 3 | RNVC: 2 | DAC: 2
- 106411
- RNCC: 3 | RNVC: 2 | DAC: E
- 1-43234
- RNCC: 5 | RNVC: 9 | DAC: A
- SC121-15W115V
- RNCC: 3 | RNVC: 2 | DAC: 3
- 1-40674
- RNCC: 3 | RNVC: 2 | DAC: 1
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- P9783996-1
- RNCC: 3 | RNVC: 2 | DAC: X
- 022356-000
- RNCC: 3 | RNVC: 2 | DAC: 5
- 022375-000
- RNCC: 3 | RNVC: 2 | DAC: 5
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- E0151
- RNCC: 3 | RNVC: 2 | DAC: 1
- 3650006-1
- RNCC: 3 | RNVC: 2 | DAC: 2
- 5618224-7
- RNCC: 3 | RNVC: 2 | DAC: E
- 187-110V
- RNCC: 3 | RNVC: 2 | DAC: 5
- 019451-001
- RNCC: 3 | RNVC: 2 | DAC: 5
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 7420-2
- RNCC: 5 | RNVC: 2 | DAC: 4
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 3605K-12
- RNCC: 3 | RNVC: 2 | DAC: 4
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 24115
- RNCC: 3 | RNVC: 2 | DAC: 3
- B-6858
- RNCC: 5 | RNVC: 1 | DAC: 2
- K098-068021
- RNCC: 6 | RNVC: 9 | DAC: 9
- ZT1980B15
- RNCC: 3 | RNVC: 2 | DAC: 4
- 5618224
- RNCC: D | RNVC: 9 | MEDALS: Y | DAC: A
- 870296
- RNCC: C | RNVC: 1 | DAC: 5
- AMR/SEM/126-1
- RNCC: 3 | RNVC: 2 | DAC: 5