Circuit Breakers - United States (US)

Federal Supply Class (FSC): 5925

NATO Supply Classification Class (NSC): 5925

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 States (US) - NCB is 00 to 09

Page 13 of 104

NSN Format for Circuit Breakers
Codified by United States

592501XXXXXXX
Group
FSG
ClassNCBIdentifier
FSC
Federal Supply Class
NIIN
NSN

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.

FSC 5925 Circuit Breakers - United States (US)
FSC 5925 Circuit Breakers - United States (US)

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.

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 Electrical and Electronic Equipment Components.
Which NATO Supply Classification Group is NSC 5925 in?
NSC 5925 is in NATO Supply Classification Group (NSG) 59 which contains Electrical and Electronic Equipment Components.

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

What is a Circuit Breaker Contact Set? 32 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? 25517 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? 444 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 194 Items
What is a Circuit Breaker Armature? 19 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? 140 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 79 Items
What is a Circuit Breaker Tripper? 834 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? 478 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? 133 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? 56 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? 22 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? 74 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 Trip Device? 75 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.

Stock Items From Supply Class 5925 Stock Items From Supply Class 5925 Page 13 of 104

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
010226519
2315741P58
RNCC: 3 | RNVC: 1
010225090
FA-24070
RNCC: 3 | RNVC: 2
010225089
6752-304-50
RNCC: 3 | RNVC: 2
010225088
6752-204-7 1/2
RNCC: 3 | RNVC: 2
010223087
6752-204-5
RNCC: 3 | RNVC: 2
6752-204-5
RNCC: 5 | RNVC: 2
010219199
HM-632400
RNCC: 3 | RNVC: 9
010219196
NFR351
RNCC: 3 | RNVC: 9
NFR351
RNCC: 5 | RNVC: 9
010219200
MA 380 F OVERLOAD HMAA3800T
RNCC: 3 | RNVC: 2
010216880
UPG-111-1-6-2-303
RNCC: 3 | RNVC: 2
010213452
PAM12-15-50VDC
RNCC: 3 | RNVC: 2
10-006-4
RNCC: 5 | RNVC: 2
PAM12-15A50VDC
RNCC: 5 | RNVC: 9
010213229
AP14-3400-1
RNCC: 3 | RNVC: 2
5-002174
RNCC: 5 | RNVC: 9
841133
RNCC: 7 | RNVC: 2
5-002174
RNCC: 8 | RNVC: 2
010212543
27A10588-105-11
RNCC: 3 | RNVC: 2
4310-016-20
RNCC: 5 | RNVC: 2
010209500
HE2-C3-4-250VAC-1-400HZ
RNCC: 3 | RNVC: 2
010202583
Q0C20F
RNCC: 3 | RNVC: 2
010200945
APG6-1-5-1-203
RNCC: 3 | RNVC: 2
S102-0102
RNCC: 3 | RNVC: 2
APGG6-5-1-203
RNCC: C | RNVC: 1
010198910
THED136070XL
RNCC: 3 | RNVC: 2
010186842
00031-0338
RNCC: 3 | RNVC: 2
31-0338
RNCC: 5 | RNVC: 9
010185647
DH42EB
RNCC: 3 | RNVC: 2
010184862
TJK636600ASA6AB3RS
RNCC: 3 | RNVC: 2
010182906
TJ400D
RNCC: 3 | RNVC: 2
TJ4000
RNCC: 5 | RNVC: 9
010181636
SM-D-359214-7
RNCC: 3 | RNVC: 2
AM1510MG3-25-150VDC-2
RNCC: 5 | RNVC: 9
010181374
454674
RNCC: 3 | RNVC: 2
010179675
AP-1-1-50-301
RNCC: 3 | RNVC: 2
010179673
AP114R883-1
RNCC: 3 | RNVC: 2
010178151
LA3300T
RNCC: 3 | RNVC: 2
LA3300T
RNCC: 5 | RNVC: 9
010178147
04770041-003
RNCC: 3 | RNVC: 2
04770041-003
RNCC: 5 | RNVC: 9
010173013
TEB132010WL
RNCC: 3 | RNVC: 2
010169170
HE2-B3-5-2
RNCC: 3 | RNVC: 9
HE2-B3-41
RNCC: 5 | RNVC: 9
010167039
0111-81/2AMP32VDC CURVE2
RNCC: 3 | RNVC: 2
0111
RNCC: 5 | RNVC: 9
0111-32VDC8 1-2AMPCURVE2
RNCC: 5 | RNVC: 9
0111-81/2AMP32VDC CURVE2
RNCC: 5 | RNVC: 9
010164178
AP1-4-50-051
RNCC: 3 | RNVC: 2
010164070
20TC2-CA-15
RNCC: 3 | RNVC: 2
20TC2-CA-15
RNCC: 5 | RNVC: 9
010144451
KAE36125S
RNCC: 3 | RNVC: 2
KAE36125S
RNCC: 5 | RNVC: 9
010141754
AP1122006-1
RNCC: 3 | RNVC: 2
010138330
30062-25
RNCC: 3 | RNVC: 2
A26386-25
RNCC: C | RNVC: 1
010134011
AP12-1R-4-1-251
RNCC: 3 | RNVC: 2
010127873
TEB132070
RNCC: 3 | RNVC: 9
010124051
Q040M200RB
RNCC: 3 | RNVC: 2
Q040MG200RB
RNCC: 5 | RNVC: 9
010106980
10630084-117
RNCC: 3 | RNVC: 2
XAM333MG6-20A208V400CPS-15
RNCC: 5 | RNVC: 9
010098977
AP1-1-7-1-1751
RNCC: 3 | RNVC: 2
010095626
128C099H10
RNCC: 3 | RNVC: 2
AP112-12K
RNCC: 5 | RNVC: 2
79-145-7
RNCC: 5 | RNVC: 9
010095063
50-236-1MG3
RNCC: 3 | RNVC: 2
010094494
260-4042-610
RNCC: 3 | RNVC: 2
AP11-855-610
RNCC: 3 | RNVC: 2
AM33MG6-10-250VAC400C15
RNCC: 5 | RNVC: 9
010092912
AM333-6-120-16-400
RNCC: 3 | RNVC: 2