The Circuit Breaker, cataloged under National Stock Number 5925-01-217-1643, is classified within Federal Supply Class 5925 (Circuit Breakers) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sae International Dba Sae International. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5925-01-217-1643 |
| Primary Part Number | MS14154-20 |
| Item Name | Circuit Breaker |
| FSC / FSG | 5925 / 59 — Circuit Breakers |
| Manufacturer | Sae International Dba Sae International |
| Status | ACTIVE |
| Bushing Length | 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN |
| Reset Method | MANUAL |
| Internal Trip Release Configuration | SERIES TRIP ALL LOCATIONS |
| Operating Voltage Type and Rating Per Pole in Volts | 200.0 AC ALL LOCATIONS |
| Mounting Facility Type and Quantity | 1 THREADED BUSHING |
| Actuator Position Designation | AT POLE TWO |
| Frequency in Hertz | 400.0 ALL LOCATIONS |
| Center to Center Distance Between Terminals Parallel to Width | 0.593 INCHES MINIMUM AND 0.655 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | MULTIPOLE-SINGLE ACTUATOR TYPE |
| Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent | 120.0 ALL LOCATIONS |
| Arc Quenching Method | MAGNETIC BLOWOUT |
| Circuit Protection Type | OVERCURRENT ALL LOCATIONS |
| Body Width | 1.840 INCHES MAXIMUM IN |
| Body Height | 1.381 INCHES MAXIMUM IN |
| Storage Type | GENERAL PURPOSE WAREHOUSE |
| Pole Quantity | 3 |
| Maximum Continuous Load Current Rating Per Pole | 20.0 AMPERES AC ALL LOCATIONS |
| Trip Release Characteristic | TIME DELAY ALL LOCATIONS |
| Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps | 2000.0 AC ALL LOCATIONS |
| Nominal Thread Size | 0.438 INCHES IN |
| Specification/standard Data | 96906-MS14154 GOVERNMENT STANDARD |
| Body Length | 0.781 INCHES MAXIMUM IN |
| Trip Delay Time in Seconds Per Rated Continuous Current | 4.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT ALL LOCATIONS |
| Manual Actuator Type and Quantity | 1 PUSH-PULL |
| Inclosure Protection Type for Which Designed | SHOCKPROOF AND VIBRATIONPROOF |
| 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.). |
| Thread Quantity Per Inch | 32 |
| Material | PLASTIC CASE |
| Actuator Function | TRIP-RESET |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MS14154-20 PRIMARY | Sae International Dba Sae International (USA) |
| MS14154-20 | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| 8420046 | C/1 Advisory reference — outside the item-of-supply concept Instruments Incorporated Dba Instruments Inc |
| MS14154-20 | 5/1 Secondary reference Flame Enterprises, Inc. Dba Flame Enterprises Inc |
| AS58091 | 5/9 Secondary reference U.S. Government activity |
| AS58091 | 5/9 Secondary reference Sae International Dba Sae International |
| 5925PL2219248 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
| MIL-C-5809 | 5/9 Secondary reference U.S. Government activity |
| SAE-AS58091 | 3/1 Design control — primary reference Sae International Dba Sae International |
| AS14154 | 5/9 Secondary reference U.S. Government activity |
| MS14154-20 | 5/9 Secondary reference U.S. Government activity |
| AS14154 | 5/9 Secondary reference Sae International Dba Sae International |
NSN 5925-01-217-1643 is a Circuit Breaker, manufactured by Sae International Dba Sae International, classified under FSC 5925, Circuit Breakers. Status: active.
NSN 5925-01-217-1643 has 2 manufacturer part numbers on file: MS14154-20 (Sae International Dba Sae International), MS14154-20 (Leonardo Spa Helicopters Division - Production Site).
4 possible matches (shared part number, not a government interchangeability claim): 5925-01-308-4031, 5925-01-315-6349, 5925-01-387-0153. Verify interchangeability with system specifications before substitution.
Key specifications for MS14154-20: Bushing Length: 0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM IN; Reset Method: MANUAL; Internal Trip Release Configuration: SERIES TRIP ALL LOCATIONS; Operating Voltage Type and Rating Per Pole in Volts: 200.0 AC ALL LOCATIONS. 30 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.