Circuit Breakers

Federal Supply Class (FSC): 5925

NATO Supply Classification Class (NSC): 5925

Group Description: Electrical and Electronic Equipment Components

Federal Supply Group (FSG): 59

NATO Supply Classification Group (NSG): 59

Page 20 of 190

NSN Format for Circuit Breakers

5925XXXXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN
FSC 5925 Circuit Breakers
FSC 5925 Circuit Breakers

Includes Circuit Breakers and Cutouts.

Excludes Relays.

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.

Additional Information for Circuit Breakers Additional Information for Circuit Breakers

NATO Supply Class 5925 is specifically designated for circuit breakers. Circuit breakers are devices used to protect electrical circuits from overloads or short circuits by interrupting the flow of current. They are essential components in electrical systems to ensure the safety and proper functioning of equipment.

Circuit breakers in this supply class are categorized based on their specific characteristics, such as voltage rating, current rating, and trip characteristics. These characteristics determine the circuit breaker's ability to handle different electrical loads and respond to different fault conditions.

NATO Supply Group 59 encompasses electrical and electronic equipment components. This group includes a wide range of items used in electrical and electronic systems, such as connectors, switches, relays, resistors, capacitors, and more. Circuit breakers, as part of this group, play a crucial role in protecting these systems from damage caused by excessive current or faults.

When procuring circuit breakers or other electrical and electronic equipment components within NATO, it is important to refer to the NATO Supply Classification System (NSCS). The NSCS provides a standardized classification system to facilitate procurement, logistics, and inventory management within NATO member countries.

By using the NATO Supply Class 5925 for circuit breakers, you can ensure that you are sourcing the appropriate equipment for your electrical systems within the NATO framework.

NSN by Country NSN by Country

Frequently Asked Questions(FAQ) for Federal Supply Class 5925 Frequently Asked Questions(FAQ) for Federal Supply Class 5925

What is Federal Supply Class 5925?
FSC 5925 is the Federal Supply Class(formally known as NATO Supply Classification Class NSC 5925) in the USA for supply items codified in the category of Circuit Breakers.
What is NATO Supply Classification Class 5925?
NSC 5925 is the NATO Supply Classification Class (also known as Federal Supply Class FSC 5925 in the USA) for supply items codified in the category of Circuit Breakers.
Which Federal Supply Group is FSC 5925 in?
FSC 5925 is in Federal Supply Group(FSG) 59 which contains .
Which NATO Supply Classification Group is NSC 5925 in?
NSC 5925 is in NATO Supply Classification Group(NSG) 59 which contains .

Supply Items Included in Federal Supply Class 5925 Supply Items Included in Federal Supply Class 5925

What is a Circuit Breaker Contact Set? 227 Items
A Circuit Breaker Contact Set (CONTACT SET,CIRCUIT BREAKER) is a grouping of two or more separate circuit breaker contacts. Excludes CONTACT ASSEMBLY, ELECTRICAL.
What is a Circuit Breaker? 49460 Items
A Circuit Breaker is a device with means other than fuses for automatically opening the circuit in which it is installed when the current varies from the predetermined value for which the device is set. May include provisions for manual operation. At least one set of contacts must be in series with the actuating element(s). A combination of semiconductor and passive devices may be used in lieu of contacts. For automatically operated items in which the actuating (tripping) element and contacts are not in series, see RELAY (as modified). For items which are operated both manually and automatically but the actuating elements and contact are not in series, see RELAY-SWITCH. Excludes CIRCUIT BREAKER BOX and magneto "breaker" assemblies. See also SWITCH (as modified); and CONTROLLER.
What is a Circuit Breaker Subassembly? 827 Items
A Circuit Breaker Subassembly is two or more different types of items, having a common mounting or mounted on each other, which together form a portion of a circuit breaker, but which in itself is not a complete functioning item and cannot be assigned a more definite item name. Excludes COIL, ELECTRICAL; THERMAL RELEASE, CIRCUIT BREAKER; and TRIPPER, CIRCUIT BREAKER.
Cover,Circuit Breaker 364 Items
What is a Circuit Breaker Armature? 29 Items
A Circuit Breaker Armature (ARMATURE,CIRCUIT BREAKER) is an item which is the pivoted or spring-mounted ferromagnetic portion of a circuit breaker, and which moves to break and/or make an electrical circuit in response to electromagnetic changes.
What is a Circuit Breaker Thermal Release? 267 Items
A Circuit Breaker Thermal Release (THERMAL RELEASE,CIRCUIT BREAKER) is an item containing fusible material which melts when the temperature reaches a predetermined value caused by an overload in an electrical circuit. The melting (fusion) of the material mechanically causes contacts to open and/or close. The item may include an integral heating element, such as a coil or resistor, but does not include contacts. Excludes COIL, CIRCUIT BREAKER; HEATER, THERMAL RELEASE; and TRIPPER, CIRCUIT BREAKER.
Base,Circuit Breaker 283 Items
What is a Circuit Breaker Tripper? 1779 Items
A Circuit Breaker Tripper (TRIPPER,CIRCUIT BREAKER) is an electromechanical device which releases the holding mechanism and permits the contacts of a circuit breaker to open. It is a replacement part of a circuit breaker. Does not include relays. See also THERMAL RELEASE, CIRCUIT BREAKER.
What is a Circuit Breaker Box? 1168 Items
A Circuit Breaker Box is an enclosure which includes, mounts, and protects one or more circuit breakers. It is designed for and may include a cover and such accessories as mounting hardware, brackets, and conduit fittings. May include terminal boards and/or bus conductors used as a convenience for terminating the circuit breakers. May include handle tie bars. It is usually used as a load center for the protection of certain electrical devices such as water heaters, motors, etc., or as a service center for homes or offices. For boxes which include only switches, jacks, fuseholders, terminals and/or terminal boards or fuseholders, or any combination of these devices, see SWITCH BOX; JACK BOX; TERMINAL BOX; and DISTRIBUTION BOX. For boxes designed to mount and protect but do not include circuit breakers, see CIRCUIT BREAKER BOX SUBASSEMBLY. See also INTERCONNECTING CABINET; PANEL, POWER DISTRIBUTION; JUNCTION BOX; and CABINET, ELECTRICAL EQUIPMENT.
What is a Ground Fault Interrupter? 733 Items
A Ground Fault Interrupter (INTERRUPTER,GROUND FAULT) is an electrical safety device designed for insertion in a power distribution circuit to provide protection against serious injury or death caused by contact with damaged or defective electrical equipment. It disconnects the ungrounded conductor(s) when its integral circuitry senses an undesirable current flow to earth (ground). It includes a reset feature and may have a test facility. It may be designed for installation in an electrical panel or box, or may be a portable unit with its own enclosure. May include switches, circuit breakers, fuses, and the like; portable units may have connecting cables. Excludes overcurrent protective devices which also provide a ground fault sensing and interrupting capability. See also CIRCUIT BREAKER.
What is a Circuit Breaker Box Subassembly? 128 Items
A Circuit Breaker Box Subassembly is an enclosure which is designed to mount and protect one or more circuit breakers. It does not include the circuit breakers. It is designed for and may include a cover and accessories as mounting hardware, brackets, and conduit fittings. May include terminal boards and/or bus conductors used as a convenience for terminating the circuit breakers. For items which include circuit breakers, see CIRCUIT BREAKER BOX. For boxes not designed to mount and protect circuit breakers, see JUNCTION BOX.
What is a Circuit Breaker Shield? 66 Items
A Circuit Breaker Shield (SHIELD,CIRCUIT BREAKER) is an item specifically designed to be placed around or over one or more CIRCUIT BREAKER in order to prevent or reduce electrical and/or mechanical interference.
What is a Circuit Breaker Locking Device? 116 Items
A Circuit Breaker Locking Device (LOCKING DEVICE,CIRCUIT BREAKER) is an item of various shapes, having an integral locking device or facilities to accommodate an external locking device, which is designed to prevent unauthorized actuation of a CIRCUIT BREAKER. Excludes items designed to protect the actuator from damage or inadvertant throwing, see GUARD, SWITCH.
What is a Circuit Breaker Detent? 11 Items
A Circuit Breaker Detent (DETENT,CIRCUIT BREAKER) is an item designed to prevent the unintentional manual activation of a CIRCUIT BREAKER (as modified) by mechanically locking the release mechanism. Excludes COVER, CIRCUIT BREAKER.
What is a Circuit Breaker Trip Device? 94 Items
A Circuit Breaker Trip Device (TRIP DEVICE,CIRCUIT BREAKER) is a device used to trip the circuit breakers requiring an ac voltage by using the stored energy in a capacitor.
What is a Circuit Breaker Remote Control? 14 Items
A Circuit Breaker Remote Control (REMOTE CONTROL,CIRCUIT BREAKER) is a device designed to remotely control a CIRCUIT BREAKER (as modified). It is generally mounted on a rail and installed on an electric panel or in a control box. It may include electrical cabling and external connections. The device may be controlled locally.

Stock Items From Supply Class 5925 Stock Items From Supply Class 5925 Page 20of 190

010499704
AM3-C3-A-6-3
RNCC: 3 | RNVC: 9
010497906
G330002-22
RNCC: 3 | RNVC: 2
AM1A3A4-250-2
RNCC: 5 | RNVC: 9
AM13MG6-4-250-4-60
RNCC: 5 | RNVC: 9
010491289
AM3-C2C3C3-15-3
RNCC: 3 | RNVC: 9
010491287
AM13MG6-7-50VDC5
RNCC: 3 | RNVC: 9
010490030
2131850-22
RNCC: 3 | RNVC: 2
AP112R-1918-22
RNCC: 5 | RNVC: 2
2131850-22
RNCC: 5 | RNVC: 9
010488764
AM12-20-50DC5
RNCC: 3 | RNVC: 1
010488235
M73-100
RNCC: 3 | RNVC: 2
010487916
AM3-C2C3C3-25-2
RNCC: 3 | RNVC: 9
010487915
AM1-B2-15-3
RNCC: 3 | RNVC: 9
010484888
AM12-15-220-50-4
RNCC: 3 | RNVC: 9
010484889
AM333-15-250-400-15
RNCC: 3 | RNVC: 9
010481552
518-202-101
RNCC: 3 | RNVC: 2
010481012
AM12-2-28-DC-5
RNCC: 3 | RNVC: 9
010481014
111-210-101
RNCC: 3 | RNVC: 9
010481015
AM333-15-250-16-400
RNCC: 3 | RNVC: 9
010481011
AM12-3-120-400-16
RNCC: 3 | RNVC: 9
010481013
AM12-10-220-50-5
RNCC: 3 | RNVC: 9
010477690
12-11142-00
RNCC: 3 | RNVC: 2
010477688
AM1-B3-7-5-3
RNCC: 3 | RNVC: 2
3023409-001-121
RNCC: 5 | RNVC: 2
010476991
AM3C2C3C3-7-5-3
RNCC: 3 | RNVC: 9
010476990
G330002-6
RNCC: 3 | RNVC: 2
AM13MG6-3-250-4-60
RNCC: 5 | RNVC: 9
010472906
G330002-9
RNCC: 3 | RNVC: 2
AM13MG6-12-250-4-60
RNCC: 5 | RNVC: 2
010472907
PAM333-20-120-400
RNCC: 3 | RNVC: 2
010471608
865005-0010
RNCC: 3 | RNVC: 2
50-218-1-MG3
RNCC: 5 | RNVC: 2
010469214
11041214-3
RNCC: 3 | RNVC: 2
AP112-3389-2
RNCC: 5 | RNVC: 2
010454252
Q1360VH
RNCC: 3 | RNVC: 9
01-360-VH
RNCC: 5 | RNVC: 9
010451616
908381-1
RNCC: 3 | RNVC: 2
010447500
UPG-111-1-40-502
RNCC: 3 | RNVC: 2
010444784
AM1-A3-50P
RNCC: 3 | RNVC: 2
010444781
HE1-B3-15P
RNCC: 3 | RNVC: 2
010444783
3023509-602-105
RNCC: 3 | RNVC: 2
AM3-C3-10P
RNCC: 5 | RNVC: 9
010430609
205-111-1-62-5-702-0
RNCC: 3 | RNVC: 2
205-111-1-62-5-702-0
RNCC: 5 | RNVC: 9
010427582
4RC1A-35
RNCC: 3 | RNVC: 2
010425581
6752-304-2 1/2
RNCC: 3 | RNVC: 2
010419657
TFK226Y225
RNCC: 3 | RNVC: 9
010417900
M39019/05-220
RNCC: 2 | RNVC: 2
MIL-C-39019/5
RNCC: 4 | RNVC: 1
AP-MIL-1-7-9-202
RNCC: C | RNVC: 1
PSM333-2-200VAC400C
RNCC: C | RNVC: 1
010414303
52E2431
RNCC: 3 | RNVC: 2
150-0958
RNCC: 5 | RNVC: 2
010404043
KM3-B800
RNCC: 3 | RNVC: 2
KM3-B800
RNCC: 5 | RNVC: 9
010404044
NLB5-50A1
RNCC: 2 | RNVC: 2
MILC17588
RNCC: 4 | RNVC: 1
010402691
7MC6-5-5
RNCC: 3 | RNVC: 2
605-101-009
RNCC: 5 | RNVC: 2
605-101-009
RNCC: 5 | RNVC: 2
010400435
13219E9761
RNCC: 3 | RNVC: 2
APL-111-1843-1
RNCC: 5 | RNVC: 2
AM3-Z177-1
RNCC: 5 | RNVC: 9
010393071
TJK636Y600
RNCC: 3 | RNVC: 2
010386177
TJKMOMA1
RNCC: 3 | RNVC: 9
010385763
M39019/03-245
RNCC: 2 | RNVC: 2
MIL-C-39019/3
RNCC: 4 | RNVC: 1
M39019/3-113
RNCC: 5 | RNVC: 9
HB2Z1-113
RNCC: C | RNVC: 1
HE2A3-9-2
RNCC: C | RNVC: 1
HE2Z6-113
RNCC: C | RNVC: 1
SM33-9-250VAC60C2
RNCC: C | RNVC: 1
AP12-1-6-1-902
RNCC: C | RNVC: 1
010385411
6752-204-25
RNCC: 3 | RNVC: 2
010377830
PAM33-20-115-400
RNCC: 3 | RNVC: 2
010371628
FAB-24020-AC
RNCC: 3 | RNVC: 2
FAB-24020-AC
RNCC: 5 | RNVC: 9
010371489
204-18572-15
RNCC: 1 | RNVC: 2
AM1-Z140-3
RNCC: 3 | RNVC: 2
AM1Z140-3-C2
RNCC: 5 | RNVC: 2
010370526
AM12-50-250-60-4
RNCC: 3 | RNVC: 2
010363985
SM-A-569574-177
RNCC: 3 | RNVC: 2
AP116-1-42F-203
RNCC: 5 | RNVC: 2
010361481
AM12HK5-250-400-15
RNCC: 3 | RNVC: 2
SP818-172-1
RNCC: 5 | RNVC: 2
010358379
NA250
RNCC: 3 | RNVC: 2
010356740
SM-A-569574-175
RNCC: 3 | RNVC: 2
AP-116-1-42F-302
RNCC: 5 | RNVC: 2
AP112-54-175
RNCC: 5 | RNVC: 2
010347504
AM1516HKMG3-5-125-2-400
RNCC: 3 | RNVC: 2
010347502
3XAM1516HKMG3-12.5-250-2-60
RNCC: 3 | RNVC: 2
010347392
PAM12-10-50VDC
RNCC: 3 | RNVC: 2
10-006-2
RNCC: 5 | RNVC: 2
010346647
584157-1
RNCC: 3 | RNVC: 2
AM3-Z84-1
RNCC: 5 | RNVC: 2
APL111-2681-1
RNCC: 5 | RNVC: 2
APL111-2831-1
RNCC: 5 | RNVC: 2
584157
RNCC: 5 | RNVC: 9
584157-1
RNCC: 5 | RNVC: 9
010346459
3XAM1516HKMG3-8-125-2-400
RNCC: 3 | RNVC: 2
010346457
7MC4-201-3
RNCC: 3 | RNVC: 2
605-101-064
RNCC: 5 | RNVC: 2
605-101-064
RNCC: 8 | RNVC: 2
010345112
TED136100ML
RNCC: 3 | RNVC: 1
010339627
73C5110A0056
RNCC: 3 | RNVC: 2
A578-1229
RNCC: 5 | RNVC: 2
010339084
TJK636500WLFP
RNCC: 3 | RNVC: 2
TJK636500WLFP
RNCC: 5 | RNVC: 2
TJK636500WLFP
RNCC: 5 | RNVC: 2
TJK636500WLFP
RNCC: 5 | RNVC: 9
010337887
TFJ226150
RNCC: 3 | RNVC: 2
010337625
653D452G07
RNCC: 3 | RNVC: 2
010335954
2712738
RNCC: 3 | RNVC: 1
010335955
PAM33MG6-12-0-43
RNCC: 3 | RNVC: 1
PAM33MG6-12-0-43
RNCC: 5 | RNVC: 9
010331983
AP-12-1R-62F-202
RNCC: 3 | RNVC: 2
010331197
CD2-Z106-2
RNCC: 3 | RNVC: 9
010330454
M55629/6-109
RNCC: 2 | RNVC: 2
MIL-C-55629/6
RNCC: 4 | RNVC: 1
APL111R535-420
RNCC: C | RNVC: 1
AM333HEMG6-25-250AC60-5
RNCC: C | RNVC: 1
AM3-Z32-109
RNCC: C | RNVC: 1
260-4014-420
RNCC: C | RNVC: 1
APL-111-1R0-55629/6-109
RNCC: C | RNVC: 1
010330455
M55629/6-111
RNCC: 2 | RNVC: 2
MIL-C-55629/6
RNCC: 4 | RNVC: 1
AM3-Z33-111
RNCC: C | RNVC: 1
APL-111-55629/6-111
RNCC: C | RNVC: 1
010323461
AM12MG6-0.25-125-4-60
RNCC: 3 | RNVC: 9
010322325
AM333MG6-1-25-39
RNCC: 3 | RNVC: 1
AM333MG6-1-25-39
RNCC: 5 | RNVC: 1
010321078
260-4011-240
RNCC: 3 | RNVC: 2
AM333MG6-3-5-250-60
RNCC: 5 | RNVC: 2
APL111-561-240
RNCC: 5 | RNVC: 2
010317184
B10B/NQB
RNCC: 3 | RNVC: 9
010315520
Q03100-70NS
RNCC: 3 | RNVC: 2
Q03100-70S
RNCC: 5 | RNVC: 9
010312127
2712734
RNCC: 3 | RNVC: 1
010311471
2712739
RNCC: 3 | RNVC: 1
010304888
134AVP70911-3
RNCC: 3 | RNVC: 2
010302970
313C748G23-452D3077G06
RNCC: 3 | RNVC: 2
010302965
711524-2
RNCC: 3 | RNVC: 2
EHD3080VL
RNCC: 5 | RNVC: 2
EB3080VL
RNCC: 5 | RNVC: 9
010302288
52E2247
RNCC: 3 | RNVC: 2
010286501
12N413/203
RNCC: 3 | RNVC: 2
010284368
27625
RNCC: 3 | RNVC: 2
010281716
EHB3015N
RNCC: 3 | RNVC: 2
010277335
2638051-115
RNCC: 3 | RNVC: 2
010262203
858681-2
RNCC: 3 | RNVC: 2
APL1-2832-2
RNCC: 5 | RNVC: 2
858681-2
RNCC: 5 | RNVC: 9
010262202
858681-3
RNCC: 3 | RNVC: 2
APL1-2832-3
RNCC: 5 | RNVC: 2
858681-3
RNCC: 5 | RNVC: 9
010262204
858681-1
RNCC: 3 | RNVC: 2
APL1-2832-1
RNCC: 5 | RNVC: 2
858681-1
RNCC: 5 | RNVC: 9
010254397
588764-1
RNCC: 3 | RNVC: 2
APGX-6-2656-1
RNCC: 5 | RNVC: 2
588764-1
RNCC: 5 | RNVC: 2
588764-1
RNCC: 5 | RNVC: 9
61MC7B123-50
RNCC: 5 | RNVC: 9
010254306
HE2-B3-0-5-2
RNCC: 3 | RNVC: 2
HE2-B3-11
RNCC: 5 | RNVC: 2
010253358
APGN6-1-6-2-103
RNCC: 3 | RNVC: 2
499-002-034
RNCC: 5 | RNVC: 2
A01379
RNCC: 5 | RNVC: 2
APGN6-1-6-2-103
RNCC: 5 | RNVC: 9
A01379
RNCC: 5 | RNVC: 9
010243808
APL2-2534-1
RNCC: 3 | RNVC: 2
10-013
RNCC: 5 | RNVC: 2
010236814
TED124015XL
RNCC: 3 | RNVC: 9
010231409
AP-1-1-50-203
RNCC: 3 | RNVC: 2
010229730
THKMA836500WL
RNCC: 3 | RNVC: 2
THKMA836500WL
RNCC: 5 | RNVC: 2
010228122
TED124040
RNCC: 3 | RNVC: 2