PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

APL1-103-32Circuit Breaker

Sensata Technologies Maryland, Inc · NSN 5925-00-189-9591 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-189-9591 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-189-9591. Primary manufacturer part number: APL1-103-32.
Features
  • Circuit Breaker — FSC 5925
  • Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION
  • Material: PLASTIC CASE
  • Thread Pitch Diameters: +0.1177 TO 0.1214 INCHES IN
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Operating Voltage Type and Rating Per Pole in Volts: 250.0 AC SINGLE LOCATION
  • Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 125.0 SINGLE LOCATION
  • Trip Delay Time in Seconds Per Rated Continuous Current: 22.000 MINIMUM AT 200 PCT AND 85.000 MAXIMUM AT 200 PCT SINGLE LOCATION
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-189-9591, 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 Sensata Technologies Maryland, Inc. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-189-9591
Primary Part NumberAPL1-103-32
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerSensata Technologies Maryland, Inc
StatusACTIVE
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
MaterialPLASTIC CASE
Thread Pitch Diameters+0.1177 TO 0.1214 INCHES IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Operating Voltage Type and Rating Per Pole in Volts250.0 AC SINGLE LOCATION
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 SINGLE LOCATION
Trip Delay Time in Seconds Per Rated Continuous Current22.000 MINIMUM AT 200 PCT AND 85.000 MAXIMUM AT 200 PCT SINGLE LOCATION
Main Contact Tripping Mechanism TypeTRIP FREE
Nominal Thread Size0.138 INCHES IN
Manual Actuator Type and Quantity1 TOGGLE
Actuator FunctionTRIP-RESET
Nominal Thread Size0.138 INCHES IN
Boss Height0.140 INCHES NOMINAL IN
Mounting Facility Type and Quantity2 THREADED HOLE(S)
Fragility FactorMODERATELY RUGGED
Special Handling FeatureMAGNETIC
Storage TypeGENERAL PURPOSE WAREHOUSE
Arc Quenching MethodMAGNETIC BLOWOUT
Pole Quantity1
Mounting Surface to Terminal End Distance2.611 INCHES NOMINAL IN
Center to Center Distance Between Terminals Parallel to Length1.938 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.062 INCHES NOMINAL IN
Thread Quantity Per Inch32
Frequency in Hertz400.0 SINGLE LOCATION
Frequency in Hertz400.0 SINGLE LOCATION
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Terminal Type and Quantity2 THREADED STUD
Actuator Position DesignationAT POLE ONE
Terminal Type and Quantity2 THREADED STUD
MaterialPLASTIC CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2840-00-475-0432420432 INTERCHANGEABLE
Seal,turbine Rear B
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
Cross-Reference Index
Part NumberManufacturer
420432 Raytheon Technical Services Company (USA)
4MC2-205-30 Sensata Technologies, Inc. Div Sensata Attleboro (USA)
420432 Cae Usa Inc. (USA)
AM12-30-250-400-14 Eaton Corp Heinemann Products Commercial Controls Div (USA)
APL1-103-32 PRIMARY Sensata Technologies Maryland, Inc (USA)
274-230-101 Wood Electric Operations Potter and Brumfield Div Amf Inc (USA)
Related Parts
2840-00-475-0432INTERCHANGEABLE
SEAL,TURBINE REAR B
420432

Frequently Asked Questions

What is NSN 5925-00-189-9591?

NSN 5925-00-189-9591 is a Circuit Breaker, manufactured by Sensata Technologies Maryland, Inc, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-189-9591?

NSN 5925-00-189-9591 has 6 cross-referenced part numbers: 420432 (Raytheon Technical Services Company), 4MC2-205-30 (Sensata Technologies, Inc. Div Sensata Attleboro), 420432 (Cae Usa Inc.), AM12-30-250-400-14 (Eaton Corp Heinemann Products Commercial Controls Div), APL1-103-32 (Sensata Technologies Maryland, Inc) and 1 more.

What NSN replaces 5925-00-189-9591?

There is 1 known substitute for 5925-00-189-9591: 2840-00-475-0432. Verify interchangeability with system specifications before substitution.

What are the specifications of APL1-103-32?

Key specifications for APL1-103-32: Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION; Material: PLASTIC CASE; Thread Pitch Diameters: +0.1177 TO 0.1214 INCHES IN; Thread Series Designator: UNIFIED NATIONAL COARSE (UNC). 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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