PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-158-1Circuit Breaker

Eaton Corp Heinemann Products Commercial Controls Div · NSN 5925-00-100-5242 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-100-5242 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-100-5242. Primary manufacturer part number: 50-158-1.
Features
  • Circuit Breaker — FSC 5925
  • Terminal Type and Quantity: 2 THREADED STUD
  • Nominal Thread Size: 0.138 INCHES IN
  • Material: PLASTIC CASE
  • Arc Quenching Method: MAGNETIC BLOWOUT
  • Center to Center Distance Between Terminals Parallel to Length: 3.063 INCHES NOMINAL IN
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 2.750 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-100-5242, 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 Eaton Corp Heinemann Products Commercial Controls Div. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-100-5242
Primary Part Number50-158-1
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerEaton Corp Heinemann Products Commercial Controls Div
StatusACTIVE
Terminal Type and Quantity2 THREADED STUD
Nominal Thread Size0.138 INCHES IN
MaterialPLASTIC CASE
Arc Quenching MethodMAGNETIC BLOWOUT
Center to Center Distance Between Terminals Parallel to Length3.063 INCHES NOMINAL IN
Storage TypeGENERAL PURPOSE WAREHOUSE
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.750 INCHES NOMINAL IN
Thread Quantity Per Inch32
Mounting Facility Type and Quantity2 THREADED HOLE(S)
Mounting Surface to Terminal End Distance3.177 INCHES MINIMUM AND 3.301 INCHES MAXIMUM IN
Boss Height0.156 INCHES NOMINAL IN
Fragility FactorMODERATELY RUGGED
Pole Quantity1
Special Handling FeatureMAGNETIC
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Unpackaged Unit Weight0.690 POUNDS NOMINAL LBS
Main Contact Tripping Mechanism TypeTRIP FREE
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 SINGLE LOCATION
Operating Voltage Type and Rating Per Pole in Volts32.0 DC SINGLE LOCATION
Reset MethodMANUAL
Body Width0.990 INCHES NOMINAL IN
Maximum Continuous Load Current Rating Per Pole150.0 AMPERES DC SINGLE LOCATION
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps5000.0 DC SINGLE LOCATION
Trip Release MethodMAGNETIC-HYDRAULIC SINGLE LOCATION
Trip Delay Time in Seconds Per Rated Continuous Current0.150 MINIMUM AT 200 PCT AND 0.500 MAXIMUM AT 200 PCT SINGLE LOCATION
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
Actuator FunctionTRIP-RESET
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Body Length3.719 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5925-00-045-5295 INTERCHANGEABLE
Circuit Breaker
5995-00-686-1899369278-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
6750-01-427-4728 INTERCHANGEABLE
Film,photographic
2835-01-507-0198501581 INTERCHANGEABLE
Shield,heat,nonaircraft Gas Turb
Unison Industries Llc
Cross-Reference Index
Part NumberManufacturer
50-158-1 Eaton Corp Heinemann Products Commercial Controls Div (USA)
AM1516 Eaton Corp Heinemann Products Commercial Controls Div (USA)
GJ1-B3-DU0150-03C Eaton Corp Heinemann Products Commercial Controls Div (USA)
GJ1-B3-DU-0150-03-C Eaton Corp Aerospace Commercial Controls Div (USA)
GJ1-B3-DU-W-150-125DC-3 Heinemann Electric Canada Incdivision of Eaton Corp (CAN)
Related Parts
5925-00-045-5295INTERCHANGEABLE
CIRCUIT BREAKER
5995-00-686-1899INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
369278-1
6750-01-427-4728INTERCHANGEABLE
FILM,PHOTOGRAPHIC
2835-01-507-0198INTERCHANGEABLE
SHIELD,HEAT,NONAIRCRAFT GAS TURB
501581

Frequently Asked Questions

What is NSN 5925-00-100-5242?

NSN 5925-00-100-5242 is a Circuit Breaker, manufactured by Eaton Corp Heinemann Products Commercial Controls Div, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-100-5242?

NSN 5925-00-100-5242 has 5 cross-referenced part numbers: 50-158-1 (Eaton Corp Heinemann Products Commercial Controls Div), AM1516 (Eaton Corp Heinemann Products Commercial Controls Div), GJ1-B3-DU0150-03C (Eaton Corp Heinemann Products Commercial Controls Div), GJ1-B3-DU-0150-03-C (Eaton Corp Aerospace Commercial Controls Div), GJ1-B3-DU-W-150-125DC-3 (Heinemann Electric Canada Incdivision of Eaton Corp).

What NSN replaces 5925-00-100-5242?

There are 4 known substitutes for 5925-00-100-5242: 5925-00-045-5295, 5995-00-686-1899, 6750-01-427-4728 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-158-1?

Key specifications for 50-158-1: Terminal Type and Quantity: 2 THREADED STUD; Nominal Thread Size: 0.138 INCHES IN; Material: PLASTIC CASE; Arc Quenching Method: MAGNETIC BLOWOUT. 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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