PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AM12HKMG3-5-125VAC60-4Circuit Breaker

Eaton Corp Heinemann Products Commercial Controls Div · NSN 5925-00-841-8670 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-841-8670 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-841-8670. Primary manufacturer part number: AM12HKMG3-5-125VAC60-4.
Features
  • Circuit Breaker — FSC 5925
  • Body Length: 2.500 INCHES NOMINAL IN
  • Operating Voltage Type and Rating Per Pole in Volts: 125.0 AC SINGLE LOCATION
  • Terminal Type and Quantity: 2 THREADED STUD
  • Material: PLASTIC CASE
  • Thread Series Designator: UNIFIED NATIONAL COARSE (UNC)
  • Nominal Thread Size: 0.138 INCHES IN
  • Internal Trip Release Configuration: SERIES TRIP SINGLE LOCATION
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-841-8670, 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 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-00-841-8670
Primary Part NumberAM12HKMG3-5-125VAC60-4
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerEaton Corp Heinemann Products Commercial Controls Div
StatusCANCELLED
Body Length2.500 INCHES NOMINAL IN
Operating Voltage Type and Rating Per Pole in Volts125.0 AC SINGLE LOCATION
Terminal Type and Quantity2 THREADED STUD
MaterialPLASTIC CASE
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Nominal Thread Size0.138 INCHES IN
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
Switch Voltage Rating and Type in Volts125.0 AC AND 50.0 DC
Frequency in Hertz60.0 SINGLE LOCATION
Maximum Continuous Load Current Rating Per Pole5.0 AMPERES AC SINGLE LOCATION
Switch Current Rating and Type in Amps5.0 AC AND 1.0 DC
Ultimate Trip Time Per Pole in Seconds18.000 MINIMUM AND 70.000 MAXIMUM SINGLE LOCATION
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Manual Actuator Type and Quantity1 TOGGLE
Trip Delay Time in Seconds Per Rated Continuous Current10.000 MINIMUM AT 150 PCT AND 30.000 MAXIMUM AT 150 PCT AND 4.000 MINIMUM AT 200 PCT AND 10.000 MAXIMUM AT 200 PCT AND 1.400 MINIMUM AT 300 PCT AND 4.000 MAXIMUM AT 300 PCT SINGLE LOCATION
Switch Location and Position DesignationINTERNAL AT POLE ONE
Actuator Position DesignationAT POLE ONE
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps2000.0 AC SINGLE LOCATION
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Main Contact Tripping Mechanism TypeTRIP FREE
Actuator FunctionTRIP-RESET
Auxiliary Switch Function and Quantity1 ALARM
Trip Release MethodMAGNETIC-HYDRAULIC SINGLE LOCATION
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT AND EXPLOSION RESISTANT
Reset MethodMANUAL
Switch Terminal TypeTAB, SOLDER LUG
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 SINGLE LOCATION
Body Width0.750 INCHES NOMINAL IN
Pole Quantity1
Arc Quenching MethodAIR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4720-00-080-4203 INTERCHANGEABLE
Hose,nonmetallic
3110-00-117-2339D208 INTERCHANGEABLE
Bearing,roller,journal
Regal Beloit America, Inc. Dba Rollway Bearing
3110-00-203-4103158300-4 INTERCHANGEABLE
Bearing,ball,annular
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5965-00-296-6053D208 INTERCHANGEABLE
Loudspeaker,permanent Magnet
Harman Professional, Inc.
3120-00-352-5755 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
AM12HKMG3-5-125VAC60-4 Eaton Corp Heinemann Products Commercial Controls Div (USA)
D208 L3harris Technologies, Inc Div Space & Airborne Systems (USA)
Related Parts
4720-00-080-4203INTERCHANGEABLE
HOSE,NONMETALLIC
3110-00-117-2339INTERCHANGEABLE
BEARING,ROLLER,JOURNAL
D208
3110-00-203-4103INTERCHANGEABLE
BEARING,BALL,ANNULAR
158300-4
5965-00-296-6053INTERCHANGEABLE
LOUDSPEAKER,PERMANENT MAGNET
D208
3120-00-352-5755INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 5925-00-841-8670?

NSN 5925-00-841-8670 is a Circuit Breaker, manufactured by Eaton Corp Heinemann Products Commercial Controls Div, classified under FSC 5925 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5925-00-841-8670?

NSN 5925-00-841-8670 has 2 cross-referenced part numbers: AM12HKMG3-5-125VAC60-4 (Eaton Corp Heinemann Products Commercial Controls Div), D208 (L3harris Technologies, Inc Div Space & Airborne Systems).

What NSN replaces 5925-00-841-8670?

There are 5 known substitutes for 5925-00-841-8670: 4720-00-080-4203, 3110-00-117-2339, 3110-00-203-4103 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AM12HKMG3-5-125VAC60-4?

Key specifications for AM12HKMG3-5-125VAC60-4: Body Length: 2.500 INCHES NOMINAL IN; Operating Voltage Type and Rating Per Pole in Volts: 125.0 AC SINGLE LOCATION; Terminal Type and Quantity: 2 THREADED STUD; Material: PLASTIC CASE. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-00-841-8670 still in active supply?

NSN 5925-00-841-8670 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com