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 10 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 10 of 104

011310373
JA2-A8-A-30-20
RNCC: 3 | RNVC: 9
2682-4052
RNCC: 5 | RNVC: 9
011305344
JA2-T3-A-20-2
RNCC: 3 | RNVC: 2
011301800
AM3-A3-A3-B6-A-10-250-2
RNCC: 3 | RNVC: 2
011295978
SM3-5-60-1
RNCC: 3 | RNVC: 9
011293383
54-220
RNCC: 3 | RNVC: 2
64-0126
RNCC: 5 | RNVC: 2
464-0126
RNCC: 5 | RNVC: 9
011282164
12-12124-06
RNCC: 3 | RNVC: 2
011281073
295-11-1REC2-42F3-103A
RNCC: 3 | RNVC: 2
5L.4831.009.33
RNCC: 5 | RNVC: 2
011279400
260-4061-390
RNCC: 3 | RNVC: 2
011279401
HE2-B3-1.5P
RNCC: 3 | RNVC: 2
011279397
HH83QX016C
RNCC: 3 | RNVC: 2
011279399
295-1-1REC2-42F3-102A
RNCC: 3 | RNVC: 2
5L.4831.009.34
RNCC: 5 | RNVC: 2
011272969
260-0006-130
RNCC: 3 | RNVC: 2
299-3-4166-130
RNCC: 5 | RNVC: 2
299-3-8015-1
RNCC: 5 | RNVC: 9
011270620
295-11-1REC2-42F3-502A
RNCC: 3 | RNVC: 2
5L.4831.009.32
RNCC: 5 | RNVC: 2
011266726
AM12HE-2-250-60-4
RNCC: 3 | RNVC: 2
011264758
97355-ETN5939
RNCC: 3 | RNVC: 1
011262138
260-4019-790
RNCC: 3 | RNVC: 2
APL1R-557-790
RNCC: 5 | RNVC: 2
011255728
7274-36-7 1/2
RNCC: 3 | RNVC: 2
7274-36-7-1-2
RNCC: 5 | RNVC: 9
011254871
7274-36-1/2
RNCC: 3 | RNVC: 2
7274-3-6-1-2
RNCC: 5 | RNVC: 9
011254369
TFK236125TFKAS2AB2RS
RNCC: 3 | RNVC: 2
011249879
GC885AK1
RNCC: 3 | RNVC: 2
011247201
112798-1
RNCC: 3 | RNVC: 2
112798
RNCC: 5 | RNVC: 9
112798
RNCC: 5 | RNVC: 9
011247213
260-4065-120
RNCC: 3 | RNVC: 2
APL11R-554-120
RNCC: 5 | RNVC: 2
APL11R-8025-1
RNCC: 5 | RNVC: 9
APL11R8025-10
RNCC: 5 | RNVC: 9
011245556
1618-05
RNCC: 3 | RNVC: 2
011238496
JA3-C2-5-2
RNCC: 3 | RNVC: 9
UPGH-111-1REC2-42-502-09
RNCC: 5 | RNVC: 2
011237851
AM3-Z101-1
RNCC: 3 | RNVC: 2
011230459
13226E0379-2
RNCC: 1 | RNVC: 2
CB100-00P-20A-AFT BILGE PUMP
RNCC: 3 | RNVC: 2
011229736
12127007
RNCC: 3 | RNVC: 2
0012127007
RNCC: 5 | RNVC: 2
011229069
AP1-1-64-143
RNCC: 3 | RNVC: 2
011227984
M55629/11-103
RNCC: 2 | RNVC: 2
MIL-C-55629/11
RNCC: 4 | RNVC: 1
011227214
CD3-A3-DU-100-120/240-3
RNCC: 3 | RNVC: 2
011226201
3023629-011-11
RNCC: 3 | RNVC: 2
011226094
APL1-1RE-5-203 MA
RNCC: 3 | RNVC: 2
011224739
B4008391
RNCC: 3 | RNVC: 2
KAL36100
RNCC: 5 | RNVC: 2
KAL36100
RNCC: 5 | RNVC: 9
011221523
813010
RNCC: 3 | RNVC: 2
41543
RNCC: 5 | RNVC: 2
011220698
WC375/14-008
RNCC: 2 | RNVC: 2
W-C-375/14
RNCC: 4 | RNVC: 1
011218052
568B604-G41
RNCC: 3 | RNVC: 9
011201202
PFA-32030-GN
RNCC: 3 | RNVC: 2
PFA-32030-GN
RNCC: 5 | RNVC: 9
011196171
UPL-1-1-62-302
RNCC: 3 | RNVC: 2
UPL-1-1-62-302
RNCC: 5 | RNVC: 9
011194392
PFA-32040-GN
RNCC: 3 | RNVC: 2
PFA-32040-GN
RNCC: 5 | RNVC: 9
011194389
UPL-1111-1-61-153
RNCC: 3 | RNVC: 2
1957723-020-1
RNCC: 5 | RNVC: 2
011192406
702369-711057
RNCC: 3 | RNVC: 2
711057
RNCC: 5 | RNVC: 2
011191101
B30D0038-115
RNCC: 3 | RNVC: 2
JA1S-T3-A-15-3
RNCC: 5 | RNVC: 2
JA1-T3-A-15-3
RNCC: 5 | RNVC: 9
011187438
APGN-666-1-66-252
RNCC: 3 | RNVC: 2
011186770
AQB-A250 225NH
RNCC: 2 | RNVC: 2
MIL-C-17361
RNCC: 4 | RNVC: 1
011186623
176400-702776SH5
RNCC: 3 | RNVC: 2
702776SH5
RNCC: 5 | RNVC: 2
011186626
176400-710369
RNCC: 3 | RNVC: 2
710369
RNCC: 5 | RNVC: 2
011186625
176400-710368
RNCC: 3 | RNVC: 2
710368
RNCC: 5 | RNVC: 2
011186605
704821-708986
RNCC: 3 | RNVC: 2
708986
RNCC: 5 | RNVC: 2
011186613
176400-710370
RNCC: 3 | RNVC: 2
710370
RNCC: 5 | RNVC: 2
011186344
UPL-1-1-62-502
RNCC: 3 | RNVC: 2
UPL-1-1-62-502
RNCC: 5 | RNVC: 9
011182484
CD-1-Z8-1-35DCP
RNCC: 3 | RNVC: 9
05390
RNCC: 5 | RNVC: 2
011178167
S047E3277
RNCC: 3 | RNVC: 2
011177993
MA207-23017
RNCC: 3 | RNVC: 2
011172747
JA2-A3-5.0-2
RNCC: 3 | RNVC: 2
011171518
AP-1-1-40-252
RNCC: 3 | RNVC: 2
AP-1-1-40-252
RNCC: 5 | RNVC: 9
011171517
AM3-A9-A8-A8-A-40-20
RNCC: 3 | RNVC: 2
011170010
AM333MG6-10-250-4-60
RNCC: 3 | RNVC: 9
011166654
120642
RNCC: 3 | RNVC: 2
011152308
522134010
RNCC: 3 | RNVC: 2
011152303
522136053
RNCC: 3 | RNVC: 2
011152306
522135035
RNCC: 3 | RNVC: 2
011151789
522134009
RNCC: 3 | RNVC: 2
011150210
SM-A-937809-1
RNCC: 3 | RNVC: 2
AM4-A8A8A8A3VAC125
RNCC: 5 | RNVC: 2
AM4-Z76-2
RNCC: 5 | RNVC: 2
011141847
AP-16-1-79-153
RNCC: 3 | RNVC: 2
011138272
GC885R15D55
RNCC: 3 | RNVC: 2
3XAM17-15-120-55
RNCC: 5 | RNVC: 9
011134061
AM3-A9-A8-A8-A-20-20
RNCC: 3 | RNVC: 9
011132292
204A2462-D02
RNCC: 3 | RNVC: 9
TYAM-13-8-500-511
RNCC: 5 | RNVC: 9
011128707
113000150
RNCC: 3 | RNVC: 2
011128476
GC885N7R5E55
RNCC: 3 | RNVC: 2
AM17-7-5-208-55
RNCC: 5 | RNVC: 9
011120318
10060991-102
RNCC: 3 | RNVC: 2
4RC1A-10
RNCC: 5 | RNVC: 2
011118308
2892581-2
RNCC: 3 | RNVC: 2
2892581-2
RNCC: 5 | RNVC: 2
2892581-2
RNCC: 5 | RNVC: 2
011117555
120643
RNCC: 3 | RNVC: 2
011117557
Q4L-3400
RNCC: 3 | RNVC: 2
Q4L-3400
RNCC: 5 | RNVC: 9
011114505
507-210-101R
RNCC: 3 | RNVC: 2
507-210-101R
RNCC: 5 | RNVC: 9
011110110
452D834
RNCC: 3 | RNVC: 1
011106328
3105-0032
RNCC: 3 | RNVC: 2
011104739
3105-0051
RNCC: 3 | RNVC: 2
62MCS-13
RNCC: 5 | RNVC: 2
3105-0051
RNCC: 5 | RNVC: 9
011091870
203-2-1-61F-752-4-1-1
RNCC: 3 | RNVC: 2
011088048
8560939-8
RNCC: 3 | RNVC: 9
APL-1-6588-8
RNCC: 5 | RNVC: 2
AM1-A8-A-35-20
RNCC: 5 | RNVC: 9
011088058
HFB3050L
RNCC: 3 | RNVC: 2
4997D19G40
RNCC: 5 | RNVC: 2
011088049
8560939-2
RNCC: 3 | RNVC: 2
AP1-6588-2
RNCC: 5 | RNVC: 2
011087133
8560939-6
RNCC: 3 | RNVC: 2
8560939-6
RNCC: 3 | RNVC: 9
APL-1-6588-6
RNCC: 5 | RNVC: 2
AM1-A8-A-30-20
RNCC: 5 | RNVC: 9
011087159
W68X2Q1-2-25
RNCC: 3 | RNVC: 2
518-225-101
RNCC: 5 | RNVC: 9
011087134
8560939-10
RNCC: 3 | RNVC: 2
AM1-A8-A-50-20
RNCC: 5 | RNVC: 2
APL-1-6588-10
RNCC: 5 | RNVC: 2
011084245
AP-12-1-50-202
RNCC: 3 | RNVC: 2
011081676
ETN9701-10U01
RNCC: 3 | RNVC: 2
011078584
AM-4.16-350-2H1200A
RNCC: 3 | RNVC: 2
011063641
HA17310
RNCC: 3 | RNVC: 2
011061699
THQL1160
RNCC: 3 | RNVC: 2
THQAL1160
RNCC: 5 | RNVC: 9
011058092
163A3476-2
RNCC: 3 | RNVC: 1
011054830
1151X6250
RNCC: 3 | RNVC: 9
011054406
ETN5304-10
RNCC: 3 | RNVC: 2
313C748G21/452D379G02
RNCC: 5 | RNVC: 2
011054401
372D522G02
RNCC: 3 | RNVC: 2
011052704
16E1372-815
RNCC: 3 | RNVC: 2
011048422
203-11-1-62-302-1-1
RNCC: 3 | RNVC: 2
15113-00
RNCC: 5 | RNVC: 2
011047350
W69X2Q3-3-10
RNCC: 3 | RNVC: 2
011047348
P55629-002-01
RNCC: 3 | RNVC: 2
APL-1111-1-42-503
RNCC: 5 | RNVC: 2
011047349
W69X2Q1-3-20
RNCC: 3 | RNVC: 2
JA3-A3-A-20-3
RNCC: 5 | RNVC: 2
011046324
1618-14
RNCC: 3 | RNVC: 2
011045939
1618-15
RNCC: 3 | RNVC: 2
011045938
1618-13
RNCC: 3 | RNVC: 2
45-700-P-4
RNCC: 5 | RNVC: 2
011045937
1618-09
RNCC: 3 | RNVC: 2
011043928
APG-11-1-62-153-01
RNCC: 3 | RNVC: 2
APG-11-1-62-153-00
RNCC: 5 | RNVC: 9
011039540
JC1C3-10-2
RNCC: 3 | RNVC: 2
JC1C3-10-2
RNCC: 5 | RNVC: 9
011039541
JC1B3-15-2
RNCC: 3 | RNVC: 2
JC1B3-15-2
RNCC: 5 | RNVC: 9
011039542
JC1C3-20-2
RNCC: 3 | RNVC: 2
JC1C3-20-2
RNCC: 5 | RNVC: 9
011039539
JC1B3-7-2
RNCC: 3 | RNVC: 2
JC1B3-7-2
RNCC: 5 | RNVC: 9
011036045
GC885E14A
RNCC: 3 | RNVC: 2
AM333MG6-5-15
RNCC: 5 | RNVC: 9
011033023
JA3-C3-20-2
RNCC: 3 | RNVC: 2
011032417
JC1B3-30-2
RNCC: 3 | RNVC: 2
JC1B3-30-2
RNCC: 5 | RNVC: 9
011032416
JC1B3-10-2
RNCC: 3 | RNVC: 2
JC1B3-10-2
RNCC: 5 | RNVC: 9
011029360
11508901
RNCC: 1 | RNVC: 2
APL 2110-4019-1
RNCC: 3 | RNVC: 2
011026484
JA2-A8-A-15-3
RNCC: 3 | RNVC: 2
JA2-A8-A-15-30
RNCC: 5 | RNVC: 9
011024037
MCP13300CR
RNCC: 3 | RNVC: 2
MCP13300RC
RNCC: 5 | RNVC: 9
011022120
608902-01
RNCC: 1 | RNVC: 2
THQC1115/TQCBMPA1
RNCC: 3 | RNVC: 2
011016824
TPR8630E1
RNCC: 3 | RNVC: 2
011016070
UPG-11-1-62-102-90
RNCC: 3 | RNVC: 2
UPG-11-1-62-102
RNCC: 5 | RNVC: 9
011005750
205-1-1-63-3-203
RNCC: 3 | RNVC: 2
011003795
CB68C8
RNCC: 3 | RNVC: 2
APL111-2387-28
RNCC: 5 | RNVC: 1
CB68C8
RNCC: 5 | RNVC: 9
AM3-C3-A-8-2
RNCC: 5 | RNVC: 9
010990549
484158-10
RNCC: 3 | RNVC: 2
AM1-Z10-10-35
RNCC: 5 | RNVC: 2
APL-1-1911-10
RNCC: 5 | RNVC: 2
484158-10
RNCC: 5 | RNVC: 9
4MC2-314-35
RNCC: 5 | RNVC: 9
010989209
MIL-C-17587
RNCC: 4 | RNVC: 1
ACB 900RC 900-1200TRP 3P 500V
RNCC: 5 | RNVC: 2
010984937
SMC100FBT
RNCC: 3 | RNVC: 9
010983166
UPGH04-4384-1
RNCC: 3 | RNVC: 2
010982084
7756250
RNCC: 3 | RNVC: 2
3MC44-3-050
RNCC: 5 | RNVC: 2
010974184
AM1-Z284-2
RNCC: 3 | RNVC: 9
898740-2
RNCC: 5 | RNVC: 9
898740-2
RNCC: 7 | RNVC: 2