PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

BACC18U2Circuit Breaker

The Boeing Company Div Defense · NSN 5925-00-931-1773 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-00-931-1773 — this item is cataloged by the U.S. Government under National Stock Number 5925-00-931-1773. Primary manufacturer part number: BACC18U2.
Features
  • Circuit Breaker — FSC 5925
  • Trip Release Method: THERMAL SINGLE LOCATION
  • Body Style: SINGLE POLE TYPE
  • Trip Release Ambient Temp Rating: 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC
  • Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 120.0 SINGLE LOCATION
  • Nominal Thread Size: 0.469 INCHES IN
  • Inclosure Protection Type for Which Designed: FUNGUS RESISTANT AND MOISTURE RESISTANT AND VIBRATIONPROOF
  • Trip Delay Time in Seconds Per Rated Continuous Current: 2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-00-931-1773, 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 The Boeing Company Div Defense. Government technical data includes 30 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5925-00-931-1773
Primary Part NumberBACC18U2
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Trip Release MethodTHERMAL SINGLE LOCATION
Body StyleSINGLE POLE TYPE
Trip Release Ambient Temp Rating25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent120.0 SINGLE LOCATION
Nominal Thread Size0.469 INCHES IN
Inclosure Protection Type for Which DesignedFUNGUS RESISTANT AND MOISTURE RESISTANT AND VIBRATIONPROOF
Trip Delay Time in Seconds Per Rated Continuous Current2.000 MINIMUM AT 200 PCT AND 20.000 MAXIMUM AT 200 PCT SINGLE LOCATION
Frequency in Hertz400.0 SINGLE LOCATION
Thread Series DesignatorUNS
Terminal Type and Quantity2 TAB W/SCREW
Trip Release CharacteristicTIME DELAY SINGLE LOCATION
MaterialPLASTIC CASE
Unpackaged Unit Weight38.0 GRAMS NOMINAL G
Actuator FunctionTRIP-RESET
Maximum Interrupting Capacity Current Type and Rating Per Pole in Amps5000.0 AC AND 5000.0 DC SINGLE LOCATION
Main Contact Tripping Mechanism TypeTRIP FREE
Actuator Position DesignationAT POLE ONE
Reset MethodMANUAL
Maximum Continuous Load Current Rating Per Pole2.0 AMPERES AC AND 2.0 AMPERES DC SINGLE LOCATION
Internal Trip Release ConfigurationSERIES TRIP SINGLE LOCATION
Manual Actuator Type and Quantity1 PUSH-PULL
Operating Voltage Type and Rating Per Pole in Volts200.0 AC AND 28.0 DC SINGLE LOCATION
Circuit Protection TypeOVERCURRENT SINGLE LOCATION
Thread Quantity Per Inch32
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Pole Quantity1
Mounting Facility Type and Quantity1 THREADED BUSHING WITH PANEL SEAL
Arc Quenching MethodAIR
Mounting Surface to Terminal End Distance1.919 INCHES MINIMUM AND 1.981 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5925-00-815-33237274-2-1-2 INTERCHANGEABLE
Circuit Breaker
Sensata Technologies, Inc. Div Sensata Attleboro
5925-00-823-6138 INTERCHANGEABLE
Circuit Breaker
5925-00-946-6879MS26574-1/2 INTERCHANGEABLE
Circuit Breaker
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
4001-002-2 Safran Electrical & Power Usa, Llc Dba Labinal Power Sysyems Use CAGE Code 81640 for Cataloging (USA)
7274-21-2 Sensata Technologies, Inc. Div Sensata Attleboro (USA)
7274-21-2 Texas Instruments Inc Metallurgical Materials Div (USA)
BACC18U2 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
5925-00-815-3323INTERCHANGEABLE
CIRCUIT BREAKER
7274-2-1-2
5925-00-823-6138INTERCHANGEABLE
CIRCUIT BREAKER
5925-00-946-6879INTERCHANGEABLE
CIRCUIT BREAKER
MS26574-1/2

Frequently Asked Questions

What is NSN 5925-00-931-1773?

NSN 5925-00-931-1773 is a Circuit Breaker, manufactured by The Boeing Company Div Defense, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-00-931-1773?

NSN 5925-00-931-1773 has 4 cross-referenced part numbers: 4001-002-2 (Safran Electrical & Power Usa, Llc Dba Labinal Power Sysyems Use CAGE Code 81640 for Cataloging), 7274-21-2 (Sensata Technologies, Inc. Div Sensata Attleboro), 7274-21-2 (Texas Instruments Inc Metallurgical Materials Div), BACC18U2 (The Boeing Company Div Defense).

What NSN replaces 5925-00-931-1773?

There are 3 known substitutes for 5925-00-931-1773: 5925-00-815-3323, 5925-00-823-6138, 5925-00-946-6879. Verify interchangeability with system specifications before substitution.

What are the specifications of BACC18U2?

Key specifications for BACC18U2: Trip Release Method: THERMAL SINGLE LOCATION; Body Style: SINGLE POLE TYPE; Trip Release Ambient Temp Rating: 25.0 CELSIUS NOMINAL SINGLE LOCATION DEGC; Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 120.0 SINGLE LOCATION. 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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