What is Federal Supply Class 5920?

FSC 5920 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 5920) in the USA for supply items codified in the category of Fuses, Arrestors, Absorbers, and Protectors.

What is NATO Supply Classification Class 5920?

NSC 5920 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5920 in the USA) for supply items codified in the category of Fuses, Arrestors, Absorbers, and Protectors.

Which Federal Supply Group is FSC 5920 in?

FSC 5920 is in Federal Supply Group (FSG) 59 which contains Electrical and Electronic Equipment Components.

Which NATO Supply Classification Group is NSC 5920 in?

NSC 5920is in NATO Supply Classification Group (NSG) 59 which contains Electrical and Electronic Equipment Components.

What is a Cartridge Fuse?

A Cartridge Fuse (FUSE,CARTRIDGE) is a fuse in which the element is inclosed in a cylindrical body. The element may be renewable. The terminals may be of varying types. It may contain a visual indication that the fusible element is severed, and may also provide an audible alarm through auxiliary circuitry. For noncylindrical items, see FUSE, INCLOSED LINK.

What is an Enclosed Link Fuse?

An Enclosed Link Fuse (FUSE,ENCLOSED LINK) is a fuse in which the element is inclosed in a body of other than cylindrical shape. It may include visual indication that the fusible element is severed. For cylindrical items, see FUSE, CARTRIDGE. Excludes FUSE, OPEN LINK; and FUSE LINK, ELECTRICAL.

What is an Indicator Alarm Fuse?

An Indicator Alarm Fuse (FUSE,INDICATOR ALARM) is a fuse in which the element may or may not be enclosed. It is specifically designed to close an auxiliary circuit. When the fuse element is broken, it may provide a visual signal.

What is an Electrical Surge Arrester?

An Electrical Surge Arrester (ARRESTER,ELECTRICAL SURGE) is a circuit-protecting device which provides a discharge path for abnormal surges of high potential while consuming little or no power at normal operating voltage. Excludes items which absorb continuously recurring cyclic pulses. For resistors which are sensitive to voltage changes or used as elements in surge arresters, see RESISTOR, VOLTAGE SENSITIVE. See also ABSORBER, OVERVOLTAGE; AND CUTOUT DISK, PROTECTIVE.

What is a Lightning Arrester?

A Lightning Arrester (ARRESTER,LIGHTNING) is a protective device to provide a discharge path for lightning between line and line, and/or line and ground. See also PROTECTOR, TELEPHONE.

What is a Telephone Protector?

A Telephone Protector (PROTECTOR,TELEPHONE) is an item specifically designed to protect the phone circuits against high potentials, such as lightning and/or abnormal electrical currents. It may include an inclosure, but does not always include the protective components such as protector blocks, heat coils, and/or fuses. Excludes items which may be used in other than telephone circuits. See also ARRESTER, LIGHTNING and FUSEHOLDER.

A Plug Fuse (FUSE,PLUG) is a fuse which mounts by means of a screw base.

What is a Fuse Cover?

A Fuse Cover (COVER,FUSE) is an item designed to fully or partially enclose a fuse to prevent contact with foreign obstructions.

What is an Electrostatic Discharger?

An Electrostatic Discharger (DISCHARGER,ELECTROSTATIC) is a discharger specifically designed to reduce or remove the electrostatic charge on an item. It may be digital and may incorporate a self-checking function. See also GUN, STATIC, ELIMINATING; MATT, ELECTROSTATIC DISCHARGING; STRAP, WRIST, ELECTROSTATIC DISCHARGING; DISCHARGER, ELECTROSTATIC, AIRCRAFT.

What is an Electrical Fuse Link?

An Electrical Fuse Link (FUSE LINK,ELECTRICAL) is an item which forms the replaceable fusible element of an electrical fuse and is prefabricated to a specific size and rating. It may be inclosed. See also FUSE, INCLOSED LINK and FUSE, OPEN LINK.

A Fuse Box is an enclosure which includes, mounts, and protects one or more FUSEHOLDER. It is designed for and may include a cover. May also include electrical fuses, mounting hardware, lock(s), conduit fittings, and terminal board(s) used specifically for terminating the fuses or fuseholders. For boxes containing combinations of different electrical devices, such as switches, jacks, fuseholders, connectors, circuit breakers, terminal boards, and the like, see DISTRIBUTION BOX. For boxes designed to mount but which do not include fuseholders, see JUNCTION BOX. Excludes CHAMBER, CABLE TERMINAL; FUSEHOLDER; and TERMINAL BOX.

What is a Thermal Fuse Link?

A Thermal Fuse Link (FUSE LINK,THERMAL) is a replaceable, protective, current carrying element for heaters, heat ducts, and like items. It is designed with fusible material which will melt at known ambient temperatures and disconnect the item from its power source. See also LINK, FUSIBLE, FIRE.

What is an Overvoltage Absorber?

An Overvoltage Absorber (ABSORBER,OVERVOLTAGE) is an item specifically designed to absorb and consume surges of voltage such as that resulting across contacts when breaking a circuit having an inductive load or a burst of static across a telephone receiver. It is connected in parallel with the item it is protecting. It may be made up of metallic rectifier cells or semiconductor devices connected back-to-back which may or may not be shunted by a capacitor. It may also be a single rectifier cell or semiconductor device shunted by a capacitor. Excludes metallic rectifiers which are rated for rectifying capabilities and all single unit semiconductor devices not shunted by a capacitor. For items perfoming this function by use of voltage sensitive resistors, see RESISTOR, VOLTAGE SENSITIVE. See also CUTOUT DISK, PROTECTIVE.

What is an Electrostatic Discharger Holder?

An Electrostatic Discharger Holder (HOLDER,ELECTROSTATIC DISCHARGER) is a holder for a DISCHARGER, ELECTROSTATIC.

What is a Block Fuseholder?

A Block Fuseholder (FUSEHOLDER,BLOCK) is a fuseholder in which the fuseholder stud and/or clips and insulation are mounted on a flat base. Excludes FUSEHOLDER, RECEPTACLE.

What is an Extractor Post Fuseholder?

An Extractor Post Fuseholder (FUSEHOLDER,EXTRACTOR POST) is a fuseholder in which the clips or contacts for electrical connection to the fuse are mounted in a tubular body or similar inclosure which surrounds the fuse. It generally contains a removable cap or knob. It includes in-the-line type and those designated as miniature type FUSEHOLDER (as modified).

What is a Receptacle Fuseholder?

A Receptacle Fuseholder (FUSEHOLDER,RECEPTACLE) is a fuseholder which is specifically designed to accommodate one or more FUSE, PLUG. Excludes FUSEHOLDER, BLOCK.

What is an Electrostatic Discharging Mat?

An Electrostatic Discharging Mat (MAT,ELECTROSTATIC DISCHARGING) is an item designed to be placed under equipment, components, or personnel to form a floor, desk, table, work bench, or the like covering, to dissipate static electricity charges. It will have a means to be connected to the equipment or person from which the static electricity charge is dissipated. For floor coverings used for other than electrostatic discharging, see MAT, FLOOR. See also DISCHARGER, ELECTROSTATIC.

What is a Fuseholder Subassembly?

A Fuseholder Subassembly is the components of a fuseholder which together form the carrier to hold a fuse in position to provide electrical contact, but which in itself is not a complete functioning item and cannot be assigned a more definite item name.

Fuses, Arrestors, Absorbers, and Protectors - Canada (CA)

Federal Supply Class (FSC): 5920

NATO Supply Classification Class (NSC): 5920

Federal Supply Group (FSG): 59 Electrical and Electronic Equipment Components

NATO Supply Classification Group (NSG): 59 Electrical and Electronic Equipment Components

Items Managed by Canada (CA) - NCB is 20 or 21

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NSN Format for Fuses, Arrestors, Absorbers, and Protectors
Codified by Canada

59	20	21	XXX
Group FSG	Class	NCB	Identifier
FSC Federal Supply Class		NIIN
NSN

NATO Supply Class 5920 is a classification within NATO Supply Group 59, which is dedicated to Electrical And Electronic Equipment Components.

Class 5920 specifically includes fuses, arrestors, absorbers, and protectors. These components play a crucial role in electrical and electronic systems by protecting them from overcurrent, overvoltage, and other electrical disturbances.

Fuses are devices that are designed to break the circuit when excessive current flows through them, thus protecting the equipment from damage. They are commonly used in electrical systems to prevent fires and other hazards.

Arrestors, on the other hand, are used to protect electrical equipment from overvoltage surges. They divert the excess voltage to the ground, preventing it from damaging the equipment.

Absorbers are components that absorb or dissipate electrical energy, typically in the form of transient voltage spikes or surges. They help protect sensitive electronic devices from damage caused by these voltage fluctuations.

Protectors are devices that provide protection against various electrical disturbances, such as electromagnetic interference (EMI) and radio frequency interference (RFI). They are commonly used in electronic systems to ensure proper functioning and prevent interference from external sources.

In summary, NATO Supply Class 5920 includes fuses, arrestors, absorbers, and protectors, which are essential components in electrical and electronic systems. They provide protection against overcurrent, overvoltage, and other electrical disturbances, ensuring the safe and reliable operation of equipment.

FSC 5920 Fuses, Arrestors, Absorbers, and Protectors - Canada (CA)

Includes Fuseholders; Fuse Boxes; Fuse Posts; Fuse Links; Fuse Blocks; Current Limiters; Corona Balls; Electrostatic Dischargers.

Excludes Circuit Breakers.

Note-Mounting hardware, included in classes of this group, includes such specially designed items as brackets, holders, retainers, etc. Excluded from classes in this group are such hardware items as screws (Class 5305), bolts (Class 5306), studs (Class 5307), washers (Class 5310), rivets (Class 5320), and other common items indexed to specific classes, other than in Group 59. The FSC indexes and structure will govern the classification of items used on or with mounting hardware cited above.

Frequently Asked Questions(FAQ) for Federal Supply Class 5920

Supply Items Included in Federal Supply Class 5920

Stock Items From Supply Class 5920 Page 8 of 10