PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS26574-4Circuit Breaker

Sae International Dba Sae International · NSN 5925-00-833-6028 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-833-6028 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-833-6028. Primary manufacturer part number: MS26574-4.
Features
  • Circuit Breaker — FSC 5925
  • Frequency in Hertz: 400.0 SINGLE LOCATION
  • Maximum Continuous Load Current Rating Per Pole: 4.0 AMPERES AC AND 4.0 AMPERES DC SINGLE LOCATION
  • Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION
  • Actuator Function: TRIP-RESET
  • Circuit Protection Type: OVERCURRENT SINGLE LOCATION
  • Trip Delay Time in Seconds Per Rated Continuous Current: 2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
  • Trip Release Characteristic: TIME DELAY SINGLE LOCATION
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-833-6028, is classified within Federal Supply Class 5925 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-00-833-6028
Primary Part NumberMS26574-4
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
Frequency in Hertz400.0 SINGLE LOCATION
Maximum Continuous Load Current Rating Per Pole4.0 AMPERES AC AND 4.0 AMPERES DC SINGLE LOCATION
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
Actuator FunctionTRIP-RESET
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Trip Delay Time in Seconds Per Rated Continuous Current2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Thread Series DesignatorUN
Operating Voltage Type and Rating Per Pole in Volts115.0 AC AND 28.0 DC SINGLE LOCATION
Reset MethodMANUAL
Nominal Thread Size0.438 INCHES IN
Main Contact Tripping Mechanism TypeTRIP FREE
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent145.0 SINGLE LOCATION
Trip Release MethodTHERMAL SINGLE LOCATION
Actuator Position DesignationAT POLE ONE
Inclosure Protection Type for Which DesignedEXPLOSION RESISTANT AND MOISTURE RESISTANT
Manual Actuator Type and Quantity1 PUSH-PULL
Trip Release Ambient Temp Rating25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps100.0 AC AND 100.0 DC SINGLE LOCATION
Terminal Type and Quantity2 SCREW
Test Data Document81349-MIL-C-5809 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Mounting Surface to Terminal End Distance1.420 INCHES MAXIMUM IN
Mounting Facility Type and Quantity1 THREADED BUSHING
Pole Quantity1
Body Width0.580 INCHES MAXIMUM IN
Body Length0.780 INCHES MAXIMUM IN
Center to Center Distance Between Terminals Parallel to Length0.593 INCHES NOMINAL IN
Bushing Length0.359 INCHES NOMINAL IN
Thread Quantity Per Inch32
Body StyleSINGLE POLE TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5306-00-022-0917 INTERCHANGEABLE
Bolt,machine
5925-00-103-1576MS26574-5A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-103-7918MS26574-4A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-121-9847MS26574-1/2A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-493-5918MS26574-3/4A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-758-1839MS26574-2A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5965-00-773-9047 INTERCHANGEABLE
Loudspeaker,permanent Magnet
5925-00-882-3626MS26574-1A INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-929-7274MS26574-2 INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
5925-00-929-7716MS26574-1 INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS26574-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
AS58091 Society of Automotive Engineers Inc (USA)
220917 International Business Machines Corp (USA)
7274-4-4 Texas Instruments Deutschland Gmbh (DEU)
043X096 Ducommun Labarge Technologies, Inc. (USA)
MS26574-4 PRIMARY Sae International Dba Sae International (USA)
MS26574-4 Society of Automotive Engineers Inc (USA)
MS26574ASG4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
419073-7 Raytheon Company Dba Raytheon (USA)
43912741-004 Honeywell Regelsysteme Gmbh Geschaftsbereich Sondertechnik (DEU)
5925008336028 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
MIL-C-5809 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7274-4-4 Sensata Technologies, Inc. Div Sensata Attleboro (USA)
P36300204 Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
SAE-AS58091 Sae International Dba Sae International (USA)
AS26574 Sae International Dba Sae International (USA)
AS26574 Society of Automotive Engineers Inc (USA)
AS58091 Sae International Dba Sae International (USA)
Related Parts
5306-00-022-0917INTERCHANGEABLE
BOLT,MACHINE
5925-00-103-1576INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-5A
5925-00-103-7918INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-4A
5925-00-121-9847INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-1/2A
5925-00-493-5918INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-3/4A
5925-00-758-1839INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-2A
5965-00-773-9047INTERCHANGEABLE
LOUDSPEAKER,PERMANENT MAGNET
5925-00-882-3626INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-1A
5925-00-929-7274INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-2
5925-00-929-7716INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-1
5925-00-929-7717INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-5
5925-00-969-7783INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-3

Frequently Asked Questions

What is NSN 5925-00-833-6028?

NSN 5925-00-833-6028 is a Circuit Breaker, manufactured by Sae International Dba Sae International, classified under FSC 5925 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5925-00-833-6028?

NSN 5925-00-833-6028 has 18 cross-referenced part numbers: MS26574-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), AS58091 (Society of Automotive Engineers Inc), 220917 (International Business Machines Corp), 7274-4-4 (Texas Instruments Deutschland Gmbh), 043X096 (Ducommun Labarge Technologies, Inc.) and 13 more.

What NSN replaces 5925-00-833-6028?

There are 12 known substitutes for 5925-00-833-6028: 5306-00-022-0917, 5925-00-103-1576, 5925-00-103-7918 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS26574-4?

Key specifications for MS26574-4: Frequency in Hertz: 400.0 SINGLE LOCATION; Maximum Continuous Load Current Rating Per Pole: 4.0 AMPERES AC AND 4.0 AMPERES DC SINGLE LOCATION; Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Actuator Function: TRIP-RESET. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-00-833-6028 still in active supply?

NSN 5925-00-833-6028 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com