PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K-D2A-002Relay,electromagnetic

Leach Corp Relay Div · NSN 5945-00-509-2831 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-509-2831 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-509-2831. Primary manufacturer part number: K-D2A-002.
Features
  • Relay,electromagnetic — FSC 5945
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
  • Test Data Document: 81349-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.).
  • Center to Center Distance Between Mounting Facilities Parallel to Width: 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Features Provided: POLARIZED
  • Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
  • Winding Quantity: 1
  • Mounting Facility Pattern: TRIANGLE SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-509-2831, 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 Corp Relay Div. Government technical data includes 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 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
NSN5945-00-509-2831
Primary Part NumberK-D2A-002
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerLeach Corp Relay Div
StatusACTIVE
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
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.).
Center to Center Distance Between Mounting Facilities Parallel to Width0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Features ProvidedPOLARIZED
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Winding Quantity1
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.446 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Main Contact Load Current Rating at Maximum Rated Voltage4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
Nonpile-Up Main Contact Arrangement4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Environmental ProtectionHERMETIC
Arc Quenching MethodAIR
Terminal Type and Quantity14 WIRE HOOK ALL FUNCTIONS
Coil Quantity1
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
Time Delay0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Mounting Facility Type and Quantity3 SLOTTED HOLE SINGLE MOUNTING FACILITY
Cubic Measure2.500 CUBIC INCHES
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating290.0 OHMS NOMINAL SINGLE WINDING
Specification/standard Data96906-MS27400 GOVERNMENT STANDARD
Purpose for Which DesignedGENERAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-01-020-5009 INTERCHANGEABLE
Relay,electromagnetic
5945-01-282-6900 INTERCHANGEABLE
Relay,electromagnetic
5945-01-396-8118 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
K-D2A-002 Leach Corp Relay Div (USA)
530740-5 Raytheon Company Dba Raytheon (USA)
A3543175 Brooks Automation, Inc. Div Cti Cryogenics (USA)
MIL-R-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
E410-1001 Dri Relays Inc. Dba Dri Relays Inc (USA)
974-0574-010 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MS27400-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
81-01-88 Frequency Electronics Inc (USA)
BR30S11 Microsemi Corp.-Power Management Group (USA)
136-073-0004 Northrop Grumman Systems Corporation (USA)
Related Parts
5945-01-020-5009INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-282-6900INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-396-8118INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-509-2831?

NSN 5945-00-509-2831 is a Relay,electromagnetic, manufactured by Leach Corp Relay Div, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-00-509-2831?

NSN 5945-00-509-2831 has 11 cross-referenced part numbers: K-D2A-002 (Leach Corp Relay Div), 530740-5 (Raytheon Company Dba Raytheon), A3543175 (Brooks Automation, Inc. Div Cti Cryogenics), MIL-R-6106 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-6106 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 5945-00-509-2831?

There are 3 known substitutes for 5945-00-509-2831: 5945-01-020-5009, 5945-01-282-6900, 5945-01-396-8118. Verify interchangeability with system specifications before substitution.

What are the specifications of K-D2A-002?

Key specifications for K-D2A-002: Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC; Test Data Document: 81349-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.).; Center to Center Distance Between Mounting Facilities Parallel to Width: 0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Features Provided: POLARIZED. 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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