PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ETN-1009Circuit Breaker

L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. · NSN 5925-01-103-8322 · FSC 5925 · No Item Name Available
Verified by PartsTable
NSN 5925-01-103-8322 — this item is cataloged by the U.S. Government under National Stock Number 5925-01-103-8322. Primary manufacturer part number: ETN-1009.
Features
  • Circuit Breaker — FSC 5925
  • Unthreaded Mounting Hole Diameter: 0.228 INCHES NOMINAL IN
  • Manual Actuator Type and Quantity: 1 TOGGLE
  • Main Contact Tripping Mechanism Type: TRIP FREE
  • Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 2.938 INCHES NOMINAL IN
  • Boss Height: 0.125 INCHES NOMINAL IN
  • Center to Center Distance Between Terminals Parallel to Length: 2.625 INCHES NOMINAL IN
  • Center to Center Distance Between Terminals Parallel to Width: 1.125 INCHES NOMINAL IN
Applications
  • Applications requiring Plastic Case construction
General Description

The Circuit Breaker, cataloged under National Stock Number 5925-01-103-8322, 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 L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5925-01-103-8322
Primary Part NumberETN-1009
Item NameCircuit Breaker
FSC / FSG5925 / 59 — No Item Name Available
ManufacturerL3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.
StatusCANCELLED
Unthreaded Mounting Hole Diameter0.228 INCHES NOMINAL IN
Manual Actuator Type and Quantity1 TOGGLE
Main Contact Tripping Mechanism TypeTRIP FREE
Distance Between Centerlines of Mounting Facilities Parallel to Body Width2.938 INCHES NOMINAL IN
Boss Height0.125 INCHES NOMINAL IN
Center to Center Distance Between Terminals Parallel to Length2.625 INCHES NOMINAL IN
Center to Center Distance Between Terminals Parallel to Width1.125 INCHES NOMINAL IN
Distance Between Centerlines of Mounting Facilities Parallel to Body Length0.625 INCHES NOMINAL IN
Actuator Position DesignationAT POLE ONE AND AT POLE THREE
Pole Quantity3
Actuator FunctionTRIP-RESET
MaterialPLASTIC CASE
Body Height3.375 INCHES NOMINAL IN
Body StyleMULTIPOLE-SINGLE ACTUATOR TYPE
Body Width3.344 INCHES NOMINAL IN
Body Length4.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5961-00-449-174863221-1 INTERCHANGEABLE
Transistor
L3harris Technologies, Inc.
5925-00-948-32963360007-001 INTERCHANGEABLE
Circuit Breaker
Northrop Grumman Systems Corp Dba Northrop Grumman Systems Corp
Cross-Reference Index
Part NumberManufacturer
ETN-1009 PRIMARY L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc. (USA)
MIL-C-17361 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
63221-1 Instruments and Flight Research, Inc. (USA)
217-4498445ITEM9 Naval Ship Systems Command (USA)
217-4498445PC9 Naval Ship Systems Command (USA)
Related Parts
5961-00-449-1748INTERCHANGEABLE
TRANSISTOR
63221-1
5925-00-948-3296INTERCHANGEABLE
CIRCUIT BREAKER
3360007-001

Frequently Asked Questions

What is NSN 5925-01-103-8322?

NSN 5925-01-103-8322 is a Circuit Breaker, manufactured by L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc., classified under FSC 5925 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5925-01-103-8322?

NSN 5925-01-103-8322 has 5 cross-referenced part numbers: ETN-1009 (L3harris Maritime Power & Energy Solutions, Inc. Dba Spd Electrical Systems, Inc.), MIL-C-17361 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 63221-1 (Instruments and Flight Research, Inc.), 217-4498445ITEM9 (Naval Ship Systems Command), 217-4498445PC9 (Naval Ship Systems Command).

What NSN replaces 5925-01-103-8322?

There are 2 known substitutes for 5925-01-103-8322: 5961-00-449-1748, 5925-00-948-3296. Verify interchangeability with system specifications before substitution.

What are the specifications of ETN-1009?

Key specifications for ETN-1009: Unthreaded Mounting Hole Diameter: 0.228 INCHES NOMINAL IN; Manual Actuator Type and Quantity: 1 TOGGLE; Main Contact Tripping Mechanism Type: TRIP FREE; Distance Between Centerlines of Mounting Facilities Parallel to Body Width: 2.938 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5925-01-103-8322 still in active supply?

NSN 5925-01-103-8322 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.
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