PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77801-18FXACircuit Breaker

Reliance Electric Company Dba Reliance & Dodge Brands · NSN 5925-01-379-5348 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-379-5348 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-379-5348. Primary manufacturer part number: 77801-18FXA.
Features
  • Circuit Breaker — FSC 5925
  • Storage Type: GENERAL PURPOSE WAREHOUSE
  • Pole Quantity: 2
  • Fragility Factor: MODERATELY RUGGED
  • Special Handling Feature: MAGNETIC
  • Actuator Function: TRIP-RESET
  • Trip Release Characteristic: INSTANTANEOUS ALL LOCATIONS
  • Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent: 125.0 ALL LOCATIONS
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-379-5348, 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 Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN5925-01-379-5348
Primary Part Number77801-18FXA
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerReliance Electric Company Dba Reliance & Dodge Brands
StatusACTIVE
Storage TypeGENERAL PURPOSE WAREHOUSE
Pole Quantity2
Fragility FactorMODERATELY RUGGED
Special Handling FeatureMAGNETIC
Actuator FunctionTRIP-RESET
Trip Release CharacteristicINSTANTANEOUS ALL LOCATIONS
Ultimate Trip Rating of Continuous Current Rating Per Pole in Percent125.0 ALL LOCATIONS
External Actuator Linkage ArrangementONE AND TWO LINKED
Actuator Position DesignationAT EACH POLE
Unpackaged Unit Weight2.000 POUNDS NOMINAL LBS
Body StyleRECTANGULAR DIMENSIONAL ENVELOPE
Terminal Type and Quantity4 TAB, SOLDER LUG
Reset MethodMANUAL
MaterialPLASTIC CASE
Trip Release MethodTHERMAL-MAGNETIC ALL LOCATIONS
Circuit Protection TypeOVERCURRENT ALL LOCATIONS
Main Contact Tripping Mechanism TypeTRIP FREE
Inclosure Protection Type for Which DesignedGENERAL PURPOSE
Manual Actuator Type and Quantity2 TOGGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5940-01-435-152010-120-2-01 INTERCHANGEABLE
Terminal,stud
Concord Electronics, Inc.
Cross-Reference Index
Part NumberManufacturer
77801-18FXA Reliance Electric Company Dba Reliance & Dodge Brands (USA)
77801-18FXA Reliance Electric (USA)
2002259 Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center (USA)
Related Parts
5940-01-435-1520INTERCHANGEABLE
TERMINAL,STUD
10-120-2-01

Frequently Asked Questions

What is NSN 5925-01-379-5348?

NSN 5925-01-379-5348 is a Circuit Breaker, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 5925 (No Item Name Available). Status: active.

What are the part numbers for NSN 5925-01-379-5348?

NSN 5925-01-379-5348 has 3 cross-referenced part numbers: 77801-18FXA (Reliance Electric Company Dba Reliance & Dodge Brands), 77801-18FXA (Reliance Electric), 2002259 (Timken Gears & Services Inc. Dba Philadelphia Gear Div Western Regional Service Center).

What NSN replaces 5925-01-379-5348?

There is 1 known substitute for 5925-01-379-5348: 5940-01-435-1520. Verify interchangeability with system specifications before substitution.

What are the specifications of 77801-18FXA?

Key specifications for 77801-18FXA: Storage Type: GENERAL PURPOSE WAREHOUSE; Pole Quantity: 2; Fragility Factor: MODERATELY RUGGED; Special Handling Feature: MAGNETIC. 22 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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