The Circuit Breaker, cataloged under National Stock Number 5925-00-121-9847, 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 16 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-00-121-9847 |
| Primary Part Number | MS26574-1/2A |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — No Item Name Available |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Actuator Function | TRIP-RESET |
| Test Data Document | 81349-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.). |
| Switch Voltage Rating and Type in Volts | 115.0 AC AND 28.0 DC |
| Thread Series Designator | UN |
| Body Length | 0.780 INCHES MAXIMUM IN |
| Actuator Position Designation | AT POLE ONE |
| Trip Delay Time in Seconds Per Rated Continuous Current | 2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Center to Center Distance Between Terminals Parallel to Length | 0.593 INCHES NOMINAL IN |
| Pole Quantity | 1 |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Switch Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY CLOSED |
| Mounting Surface to Terminal End Distance | 1.420 INCHES MAXIMUM IN |
| Thread Quantity Per Inch | 32 |
| Inclosure Protection Type for Which Designed | MOISTURE RESISTANT AND EXPLOSION RESISTANT |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 145.0 SINGLE LOCATION |
| Trip Release Characteristic | TIME DELAY SINGLE LOCATION |
| Frequency in Hertz | 400.0 SINGLE LOCATION |
| Reset Method | MANUAL |
| Switch Location and Position Designation | EXTERNAL AT POLE ONE |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 115.0 AC AND 28.0 DC SINGLE LOCATION |
| Internal Trip Release Configuration | SERIES TRIP SINGLE LOCATION |
| Terminal Type and Quantity | 2 SCREW |
| Nominal Thread Size | 0.438 INCHES IN |
| Switch Current Rating and Type in Amps | 0.5 AC AND 0.5 DC |
| Bushing Length | 0.359 INCHES NOMINAL IN |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 100.0 AC AND 100.0 DC SINGLE LOCATION |
| Trip Release Method | THERMAL SINGLE LOCATION |
| Maximum Continuous Load Current Rating Per Pole | 500.0 MILLIAMPERES AC AND 500.0 MILLIAMPERES DC SINGLE LOCATION |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 10503365 | General Dynamics Land Systems Canadacorp (CAN) |
| AS26574 | Society of Automotive Engineers Inc (USA) |
| 84402811 | Crouzet Gmbh (DEU) |
| AS58091 | Sae International Dba Sae International (USA) |
| CP53B1EF105K1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MS26574-1/2A | Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M |
| 84 303 308 SP 4307-11 | Crouzet Gmbh (DEU) |
| SAE-AS58091 | Sae International Dba Sae International (USA) |
| MIL-C-5809 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Q531487051 | Rheinmetall Air Defence Ag (CHE) |
| 972.55.18.510 | Pilatus Aircraft Ltd (CHE) |
| 7274-4-1/2 | Sensata Technologies, Inc. Div Sensata Attleboro (USA) |
| AS58091 | Society of Automotive Engineers Inc (USA) |
| AS26574 | Sae International Dba Sae International (USA) |
| MS26574-1/2A | Society of Automotive Engineers Inc (USA) |
| MS26574-1/2A PRIMARY | Sae International Dba Sae International (USA) |
NSN 5925-00-121-9847 is a Circuit Breaker, manufactured by Sae International Dba Sae International, classified under FSC 5925 (No Item Name Available). Status: active.
NSN 5925-00-121-9847 has 16 cross-referenced part numbers: 10503365 (General Dynamics Land Systems Canadacorp), AS26574 (Society of Automotive Engineers Inc), 84402811 (Crouzet Gmbh), AS58091 (Sae International Dba Sae International), CP53B1EF105K1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 11 more.
There are 12 known substitutes for 5925-00-121-9847: 5925-00-103-1576, 5910-00-129-6260, 5925-00-493-5918 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MS26574-1/2A: Actuator Function: TRIP-RESET; Test Data Document: 81349-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.).; Switch Voltage Rating and Type in Volts: 115.0 AC AND 28.0 DC; Thread Series Designator: UN. 30 total characteristics are documented in the Federal Logistics Information System.