The Circuit Breaker, cataloged under National Stock Number 5925-01-149-6963, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-149-6963 |
| Primary Part Number | MIL-PRF-55629/1 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Fragility Factor | MODERATELY RUGGED |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 2.046 INCHES MINIMUM AND 2.078 INCHES MAXIMUM IN |
| Pole Quantity | 1 |
| Mounting Facility Type and Quantity | 2 THREADED HOLE(S) |
| Center to Center Distance Between Terminals Parallel to Length | 1.660 INCHES MINIMUM AND 1.960 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Main Contact Tripping Mechanism Type | TRIP FREE |
| Thread Quantity Per Inch | 32 |
| Special Handling Feature | MAGNETIC |
| Maximum Continuous Load Current Rating Per Pole | 200.0 MILLIAMPERES DC SINGLE LOCATION |
| Mounting Surface to Terminal End Distance | 2.553 INCHES MAXIMUM IN |
| Boss Height | 0.109 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Inclosure Protection Type for Which Designed | MOISTURE RESISTANT AND SHOCK RESISTANT AND VIBRATION RESISTANT |
| Terminal Type and Quantity | 2 THREADED STUD |
| Body Style | SINGLE POLE TYPE |
| Trip Delay Time in Seconds Per Rated Continuous Current | 0.130 MINIMUM AT 200 PCT AND 1.400 MAXIMUM AT 200 PCT SINGLE LOCATION |
| Test Data Document | 81349-MIL-C-55629 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.). |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 125.0 SINGLE LOCATION |
| Reset Method | MANUAL |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 2000.0 DC SINGLE LOCATION |
| Operating Voltage Type and Rating Per Pole in Volts | 50.0 DC SINGLE LOCATION |
| Body Length | 2.510 INCHES MAXIMUM IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Actuator Position Designation | AT POLE ONE |
| Material | PLASTIC CASE |
| Circuit Protection Type | OVERCURRENT SINGLE LOCATION |
| Nominal Thread Size | 0.138 INCHES IN |
| Actuator Function | TRIP-RESET |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-PRF-55629/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M55629/1-002 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-C-55629/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| M55629/1 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
NSN 5925-01-149-6963 is a Circuit Breaker, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5925 (No Item Name Available). Status: active.
NSN 5925-01-149-6963 has 4 cross-referenced part numbers: MIL-PRF-55629/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M55629/1-002 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-55629/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M55629/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).
There are 2 known substitutes for 5925-01-149-6963: 5925-00-166-6779, 5925-01-075-3802. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-PRF-55629/1: Fragility Factor: MODERATELY RUGGED; Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 2.046 INCHES MINIMUM AND 2.078 INCHES MAXIMUM IN; Pole Quantity: 1; Mounting Facility Type and Quantity: 2 THREADED HOLE(S). 30 total characteristics are documented in the Federal Logistics Information System.