PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KC-D2N-103Relay,electromagnetic

Leach International Corp Div Leach International Corporation · NSN 5945-01-190-4683 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-190-4683 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-190-4683. Primary manufacturer part number: KC-D2N-103.
Features
  • Relay,electromagnetic — FSC 5945
  • Coil Quantity: 1
  • Nominal Operating Current Rating and Type: 120.0 MILLIAMPERES DC SINGLE WINDING
  • Winding Quantity: 1
  • Mounting Slot Width: 0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle: 1.471 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Main Contact Load Current Rating at Maximum Rated Voltage: 25.0 AMPERES AC AND 25.0 AMPERES DC RESISTIVE LOAD
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-190-4683, is classified within Federal Supply Class 5945 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Leach International Corp Div Leach International Corporation. Government technical data includes 26 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: Active.

Technical Specifications
ParameterValue
NSN5945-01-190-4683
Primary Part NumberKC-D2N-103
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLeach International Corp Div Leach International Corporation
StatusACTIVE
Coil Quantity1
Nominal Operating Current Rating and Type120.0 MILLIAMPERES DC SINGLE WINDING
Winding Quantity1
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.471 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Load Current Rating at Maximum Rated Voltage25.0 AMPERES AC AND 25.0 AMPERES DC RESISTIVE LOAD
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Duty TypeCONTINUOUS
Nonpile-Up Main Contact Arrangement3 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Arc Quenching MethodAIR
Terminal Type and Quantity11 WIRE HOOK ALL FUNCTIONS
Specification/standard Data96906-MS27743 GOVERNMENT STANDARD
Cubic Measure2.897 CUBIC INCHES
Purpose for Which DesignedGENERAL
Features ProvidedPOLARIZED
Fragility FactorMODERATELY RUGGED
Center to Center Distance Between Mounting Facilities Parallel to Width0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity3 SLOTTED HOLE SINGLE MOUNTING FACILITY
Time Delay0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Test Data Document81349-MIL-R-6106 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC MOTOR LOAD
Main Contact Load Current Rating at Maximum Rated Voltage5.0 AMPERES AC AND 5.0 AMPERES DC LAMP LOAD
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Storage TypeGENERAL PURPOSE WAREHOUSE
Environmental ProtectionHERMETIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5945-01-169-4123 INTERCHANGEABLE
Relay,electromagnetic
5945-01-461-9953 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
KC-D2N-103 Leach International Corp Div Leach International Corporation (USA)
MIL-R-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27743-16 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
KC-D2N-103 Leach Corp Relay Div (USA)
MIL-PRF-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-01-169-4123INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-461-9953INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-190-4683?

NSN 5945-01-190-4683 is a Relay,electromagnetic, manufactured by Leach International Corp Div Leach International Corporation, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-190-4683?

NSN 5945-01-190-4683 has 5 cross-referenced part numbers: KC-D2N-103 (Leach International Corp Div Leach International Corporation), MIL-R-6106 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS27743-16 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), KC-D2N-103 (Leach Corp Relay Div), MIL-PRF-6106 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5945-01-190-4683?

There are 2 known substitutes for 5945-01-190-4683: 5945-01-169-4123, 5945-01-461-9953. Verify interchangeability with system specifications before substitution.

What are the specifications of KC-D2N-103?

Key specifications for KC-D2N-103: Coil Quantity: 1; Nominal Operating Current Rating and Type: 120.0 MILLIAMPERES DC SINGLE WINDING; Overall Width: 1.025 INCHES MAXIMUM IN; Winding Quantity: 1. 29 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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