PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AM1-A3-40-2Circuit Breaker

U S Dept of Transportation Federal Aviation Administration · NSN 5925-01-064-4095 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-064-4095 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-064-4095. Primary manufacturer part number: AM1-A3-40-2.
Features
  • Circuit Breaker — FSC 5925
  • Trip Release Characteristic: TIME DELAY SINGLE LOCATION
  • Ultimate Trip Time Per Pole in Seconds: 10.000 MINIMUM SINGLE LOCATION
  • Frequency in Hertz: 50.0 SINGLE LOCATION
  • Terminal Type and Quantity: 2 THREADED STUD
  • Body Style: SINGLE POLE TYPE
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Length: 2.062 INCHES NOMINAL IN
  • Mounting Surface to Terminal End Distance: 2.611 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-064-4095, 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 U S Dept of Transportation Federal Aviation Administration. Government technical data includes 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-01-064-4095
Primary Part NumberAM1-A3-40-2
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerU S Dept of Transportation Federal Aviation Administration
StatusACTIVE
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
Ultimate Trip Time Per Pole in Seconds10.000 MINIMUM SINGLE LOCATION
Frequency in Hertz50.0 SINGLE LOCATION
Terminal Type and Quantity2 THREADED STUD
Body StyleSINGLE POLE TYPE
Distance Between Centerlines of Mounting Facilities Parallel to Body Length2.062 INCHES NOMINAL IN
Mounting Surface to Terminal End Distance2.611 INCHES NOMINAL IN
Thread Quantity Per Inch32
Mounting Facility Type and Quantity2 THREADED HOLE(S)
Pole Quantity1
Center to Center Distance Between Terminals Parallel to Length1.938 INCHES NOMINAL IN
Boss Height0.140 INCHES NOMINAL IN
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Trip Delay Time in Seconds Per Rated Continuous Current2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT AND 0.600 MINIMUM AT 300 PCT AND 5.000 MAXIMUM AT 300 PCT AND 0.300 MINIMUM AT 400 PCT AND 2.000 MAXIMUM AT 400 PCT AND 0.005 MINIMUM AT 1000 PCT AND 0.040 MAXIMUM AT 1000 PCT SINGLE LOCATION
Operating Voltage Type and Rating Per Pole in Volts250.0 AC SINGLE LOCATION
Trip Release MethodMAGNETIC-HYDRAULIC SINGLE LOCATION
Maximum Continuous Load Current Rating Per Pole40.0 AMPERES AC SINGLE LOCATION
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT
MaterialPLASTIC CASE
Reset MethodMANUAL
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps1000.0 AC SINGLE LOCATION
Main Contact Tripping Mechanism TypeTRIP FREE
Actuator Position DesignationAT POLE ONE
Nominal Thread Size0.138 INCHES IN
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 SINGLE LOCATION
Body Width0.750 INCHES NOMINAL IN
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
Actuator FunctionTRIP-RESET
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-227-2758 INTERCHANGEABLE
Bearing,ball,thrust
5310-00-261-734000103321 INTERCHANGEABLE
Washer,lock
Rolls-Royce Solutions America Inc
5360-00-788-1546232794 INTERCHANGEABLE
Spring,helical,compression
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
3510-01-165-1955 INTERCHANGEABLE
Filter,lint
8120-01-328-2025BT-8366295-1 ITEM 1 INTERCHANGEABLE
Cylinder,compressed Gas,monobrom
Tyco Fire Products Lp
5925-01-524-7397IELHK11-1-62-40.0-01-V INTERCHANGEABLE
Circuit Breaker
Sensata Technologies Maryland, Inc
Cross-Reference Index
Part NumberManufacturer
23265 Tandem Computers Inc (USA)
AM1-A3-40-2 Eaton Corp Heinemann Products Commercial Controls Div (USA)
AM1-A3-40-2 PRIMARY U S Dept of Transportation Federal Aviation Administration (USA)
UPL1-1-62-403 Sensata Technologies Maryland, Inc (USA)
Related Parts
3110-00-227-2758INTERCHANGEABLE
BEARING,BALL,THRUST
5310-00-261-7340INTERCHANGEABLE
WASHER,LOCK
00103321
5360-00-788-1546INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
232794
3510-01-165-1955INTERCHANGEABLE
FILTER,LINT
8120-01-328-2025INTERCHANGEABLE
CYLINDER,COMPRESSED GAS,MONOBROM
BT-8366295-1 ITEM 1
5925-01-524-7397INTERCHANGEABLE
CIRCUIT BREAKER
IELHK11-1-62-40.0-01-V

Frequently Asked Questions

What is NSN 5925-01-064-4095?

NSN 5925-01-064-4095 is a Circuit Breaker, manufactured by U S Dept of Transportation Federal Aviation Administration, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-064-4095?

NSN 5925-01-064-4095 has 4 cross-referenced part numbers: 23265 (Tandem Computers Inc), AM1-A3-40-2 (Eaton Corp Heinemann Products Commercial Controls Div), AM1-A3-40-2 (U S Dept of Transportation Federal Aviation Administration), UPL1-1-62-403 (Sensata Technologies Maryland, Inc).

What NSN replaces 5925-01-064-4095?

There are 6 known substitutes for 5925-01-064-4095: 3110-00-227-2758, 5310-00-261-7340, 5360-00-788-1546 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AM1-A3-40-2?

Key specifications for AM1-A3-40-2: Trip Release Characteristic: TIME DELAY SINGLE LOCATION; Ultimate Trip Time Per Pole in Seconds: 10.000 MINIMUM SINGLE LOCATION; Frequency in Hertz: 50.0 SINGLE LOCATION; Terminal Type and Quantity: 2 THREADED STUD. 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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