Coils and Transformers from United Kingdom (UK)

Question 1

What is Federal Supply Class 5950?

Accepted Answer

FSC 5950 is the Federal Supply Class (formally known as NATO Supply Classification Class NSC 5950) in the USA for supply items codified in the category of Coils and Transformers.

Question 2

What is NATO Supply Classification Class 5950?

Accepted Answer

NSC 5950 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5950 in the USA) for supply items codified in the category of Coils and Transformers.

Question 3

Which Federal Supply Group is FSC 5950 in?

Accepted Answer

FSC 5950 is in Federal Supply Group (FSG) 59 which contains Electrical and Electronic Equipment Components.

Question 4

Which NATO Supply Classification Group is NSC 5950 in?

Accepted Answer

NSC 5950is in NATO Supply Classification Group (NSG) 59 which contains Electrical and Electronic Equipment Components.

Question 5

What is a Demagnetizer?

Accepted Answer

A Demagnetizer is an item specifically designed to remove magnetism from another item. For items specifically designed to disorientate the magnetic signal induced on tape or wire in preparation for the recording of another signal, see ERASER, MAGNETIC.

Question 6

What is a Pulse Transformer?

Accepted Answer

A Pulse Transformer (TRANSFORMER,PULSE) is a transformer designed to transfer pulses of nonsinusoidal wave forms between circuits without basically changing the wave forms.

Question 7

What is a Radio Frequency Coil Assembly?

Accepted Answer

A Radio Frequency Coil Assembly (COIL ASSEMBLY,RADIO FREQUENCY) is two or more coils on a common mounting or mounted on each other. Excludes items inductively coupled.

Question 8

What is a Transformer Assembly?

Accepted Answer

A Transformer Assembly is two or more separable TRANSFORMER (as modified) on a common mounting or mounted on each other.

Question 9

What is a Potential Transformer?

Accepted Answer

A Potential Transformer (TRANSFORMER,POTENTIAL) is a transformer designed to connect an electrical instrument to a power line or other high potential alternating current source for the purpose of voltage measurement or control.

Question 10

What is a Coil Form?

Accepted Answer

A Coil Form (FORM,COIL) is an item specifically designed to form the foundation on which a coil is wound.

Question 11

What is a Reactor?

Accepted Answer

A Reactor is a coil or coils usually constructed with cores having low magnetic reluctance, whose primary purpose is to furnish an inductive impedance in power or audio frequency circuit ranging from zero to 20 kilohertz (kilocycles). Includes audio frequency and power filter chokes, audio reactors and swinging chokes. Does not include transformers or coils used above audio frequency range. Excludes SATURABLE REACTOR. For reactors with air cores, see COIL (as modified).

Question 12

What is a Current Transformer?

Accepted Answer

A Current Transformer (TRANSFORMER,CURRENT) is an item consisting of one or more windings, designed to be placed near or connected in series with an alternating current power line to measure the current passing through the line by means of a meter; or to control the current passing through the line by means of a control device. Excludes TRANSFORMER, POWER, CURRENT REGULATING.

Question 13

What is a Radio Frequency Transformer?

Accepted Answer

A Radio Frequency Transformer (TRANSFORMER,RADIO FREQUENCY) is an item having either a single tapped winding (autotransformer type), or two or more windings designed to furnish inductive reactance and/or transfer electrical energy in circuits by means of a magnetic field. It is so designed that its entire intended range of operations is above 20 Kilohertz (Kilocycles). The minimum value may extend into the audio frequency range (below 20 Kilohertz). It may include integral capacitors, coils, resistors, and adjustable tuning cores. For items having only two active terminals see COIL, RADIO FREQUENCY. Includes types having windings which may be moved with respect to each other. Excludes TRANSFORMER, DISCRIMINATOR.

Question 14

What is an Audio Frequency Transformer?

Accepted Answer

An Audio Frequency Transformer (TRANSFORMER,AUDIO FREQUENCY) is a transformer which is designed so that part or all of its range of operating frequencies is 20 kilohertz (kilocycles) and below. The maximum value may extend into the radio frequency range. It is generally used in the input, output, amplifier, or oscillator stages of audio and sonar devices.

Question 15

What is a Vibrator Power Transformer?

Accepted Answer

A Vibrator Power Transformer (TRANSFORMER,POWER,VIBRATOR) is a transformer consisting of two or more windings designed for use with a vibrator for stepping up or down pulsating direct current voltages. May also have provisions for alternating current input voltages. Excludes TRANSFORMER, PULSE.

Question 16

What is a Coil Shield?

Accepted Answer

A Coil Shield (SHIELD,COIL) is an item specifically designed to be placed around a coil for the purpose of shielding against electrical or mechanical interference. May include mounting facilities. See also COVER (as modified); HOUSING (as modified) and VISOR (as modified).

Question 17

What is an Electromagnet?

Accepted Answer

An Electromagnet is a winding with a soft, laminated, or pressed powdered iron core, which generates an extremely strong field of magnetic force when current is passed through the winding. The field dissipates almost completely when the current is interrupted. For electric magnets used for lifting, see MAGNET, LIFTING, ELECTRIC.

Question 18

What is a Reactor-Transformer?

Accepted Answer

A Reactor-Transformer is a component consisting of two or more electrically distinct items. One or more items are made of one or more coils which function as a reactor; at least one other item is made of a tapped coil or two or more coils which function as a transformer. The items may have a common core, but are not magnetically coupled.

Question 19

What is a Radio Frequency Coil?

Accepted Answer

A Radio Frequency Coil (COIL,RADIO FREQUENCY) is an item consisting of a partial turn as one or more turns of wire or other conductive material which constitutes one continuous untapped winding. It may be wound or formed in other than a circular manner and may be self-supporting, requiring no coil form. It is specifically designed to furnish inductive reactance in a circuit carrying radio frequency current ranging from 20 kilohertz (kilocycles) and above. It may include tuning devices, integral resistors and capacitors; however, excludes FILTER (as modified). The coil has only two electrical terminals. For items having tapped winding or more than one winding - see TRANSFORMER, RADIO FREQUENCY. For coils wound on resistors, which are designed to be inserted in the circuit of a radio frequency stage to suppress high frequency parasitic oscillations, see SUPPRESSOR, PARASITIC.

Question 20

What is a Saturable Reactor?

Accepted Answer

A Saturable Reactor is an item whose inductance value is controlled by electrical means. It depends on the action of the electromagnet flux produced by the control winding upon the effective permeability of the core. It contains two or more windings, at least one of which must be a control winding. For items designed to be used in conjunction with a rectifier(s) for amplification purposes, see AMPLIFIER, MAGNETIC.

Question 21

What is a Discriminator Transformer?

Accepted Answer

A Discriminator Transformer (TRANSFORMER,DISCRIMINATOR) is a transformer designed to be used in a stage where frequency modulation signals are converted directly to audio frequency signals or in a stage where frequency changes are converted to corresponding voltage changes. May include capacitors, resistors and/or coils as integral parts.

Question 22

What is a Transformer Set?

Accepted Answer

A Transformer Set is a grouping of two or more individual TRANSFORMER (as modified). Includes matched pairs. For items which are mounted on a common mounting or mounted on each other, see TRANSFORMER ASSEMBLY.

Question 23

What is an Electrical Coil?

Accepted Answer

An Electrical Coil (COIL,ELECTRICAL) is an item generally consisting of one or more turns of wire or similar conductive material (in special cases it may be considered as a partial turn). It is specifically designed to concentrate magnetic flux generated by the flow of an electric current, to induce in itself an electromotive force, and to add or subtract inductive reactance in a circuit. It may include tuning devices, integral resistors and capacitors; however, excludes FILTER (as modified). For coils wound on resistors which are designed to be inserted into the circuit of a radio frequency stage to suppress high frequency parasitic oscillations, see SUPPRESSOR, PARASITIC..

Question 24

What is a Telephone Coil?

Accepted Answer

A Telephone Coil (COIL,TELEPHONE) is an item consisting of one or more turns of wire or similar conductive material. It is specifically designed for use in telephone circuitry for reducing cross talk by balancing capacitances, or impedance matching or providing inductive reactance for overcoming inherent capacitance, or inductive coupling where direct coupling is undesirable or discriminating against the flow of alternating current in favor of direct current.

Question 25

What is a Power Transformer?

Accepted Answer

A Power Transformer (TRANSFORMER,POWER) is a transformer consisting of one or more primary winding(s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an overall one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see TRANSFORMER (1), POWER, AUTOTRANSFORMER. Excludes TRANSFORMER (1), PULSE.

Question 26

What is a Power Autotransformer Transformer?

Accepted Answer

A Power Autotransformer Transformer (TRANSFORMER,POWER AUTOTRANSFORMER) is a transformer which incorporates the primary and secondary functions into a single winding, which is common to both input and output circuits, and is designed to change the relationship of volts and amperes between the entire winding and its taps. Includes multiple winding transformers of like design and items in which a variation of the turns ratio or inductive ratio of inductive coupling is accomplished by connection to fixed terminals. Also, includes items having a provision for mechanically changing the turns ratio in progressive increments, by means of a shaft, voltage taps, ratio adjuster, or devices of similar design. Excludes TRANSFORMER (1), POWER; TRANSFORMER (1), PULSE.

Question 27

What is an Electrical Coil Assembly?

Accepted Answer

An Electrical Coil Assembly (COIL ASSEMBLY,ELECTRICAL) is two or more COIL, ELECTRICAL on a common mounting or mounted on each other. Excludes items inductively coupled. For items inductively coupled, see TRANSFORMER (as modified).

Question 28

What is an Electromagnetic Component Core?

Accepted Answer

An Electromagnetic Component Core (CORE,ELECTROMAGNETIC COMPONENT) is a solid or assembled item made of ferromagnetic material and designed to be used for the construction of a COIL (as modified), a TRANSFORMER (as modified), a REACTOR (as modified) or a ELECTROMAGNET.  the item increases the magnetic flux within those components.

Question 29

What is an Electronic Shielding Bead?

Accepted Answer

An Electronic Shielding Bead (SHIELDING BEAD,ELECTRONIC) is a high permeability item designed to be threaded on the supply leads of electronic items for the purpose of damping parasitic resonances. See also SUPPRESSOR, PARASITIC.

Coils and Transformers - United Kingdom (UK)

Federal Supply Class (FSC): 5950

NATO Supply Classification Class (NSC): 5950

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

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

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

Page 22 of 144

NSN Format for Coils and Transformers
Codified by United Kingdom

Frequently Asked Questions(FAQ) for Federal Supply Class 5950

Supply Items Included in Federal Supply Class 5950

Stock Items From Supply Class 5950 Page 22 of 144