PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

538115-9Relay,electromagnetic

Raytheon Company Dba Raytheon · NSN 5945-01-020-5009 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-020-5009 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-020-5009. Primary manufacturer part number: 538115-9.
Features
  • Relay,electromagnetic — FSC 5945
  • 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.).
  • Main Contact Load Current Rating at Maximum Rated Voltage: 4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
  • Mounting Facility Type and Quantity: 3 SLOTTED HOLE SINGLE MOUNTING FACILITY
  • Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
  • Cubic Measure: 2.324 CUBIC INCHES
  • Time Delay: 0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
  • Fragility Factor: MODERATELY RUGGED
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-020-5009, 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 Raytheon Company Dba Raytheon. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 12 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
NSN5945-01-020-5009
Primary Part Number538115-9
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon
StatusACTIVE
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 Voltage4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
Mounting Facility Type and Quantity3 SLOTTED HOLE SINGLE MOUNTING FACILITY
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
Cubic Measure2.324 CUBIC INCHES
Time Delay0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Fragility FactorMODERATELY RUGGED
Nonpile-Up Main Contact Arrangement4 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Center to Center Distance Between Mounting Facilities Parallel to Width0.625 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Purpose for Which DesignedGENERAL
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Mounting Facility PatternTRIANGLE SINGLE MOUNTING FACILITY
Arc Quenching MethodAIR
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Coil Quantity1
Center to Center Distance Between Mounting Facilities Parallel to the Altitude of an Isosceles Triangle1.446 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Specification/standard Data96906-MS27400 GOVERNMENT STANDARD
Duty TypeCONTINUOUS
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding DC Resistance Rating290.0 OHMS NOMINAL SINGLE WINDING
Storage TypeGENERAL PURPOSE WAREHOUSE
Winding Quantity1
Environmental ProtectionHERMETIC
Terminal Type and Quantity14 WIRE HOOK ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5945-00-509-2831 INTERCHANGEABLE
Relay,electromagnetic
5945-01-282-6900 INTERCHANGEABLE
Relay,electromagnetic
5945-01-396-8118 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
538115-9 Raytheon Company Dba Raytheon (USA)
K-D2A-003 Leach Corp Relay Div (USA)
946958-9 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
10126767 Nimikkeistokeskus Ncb Finland (FIN)
974-0574-010 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
X22-306-64 Bofors Ab (SWE)
MS27400-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
825RL0106 Leonardo S.p.a. - Electronics Division - Defence Business Area (ITA)
MIL-R-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
E410-1219 Dri Relays Inc. Dba Dri Relays Inc (USA)
359334 Sierra Technologies Inc Garden City Div (USA)
MIL-PRF-6106 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27400-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
X22-306-64 Bae Systems Bofors Ab (SWE)
Related Parts
5945-00-509-2831INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-282-6900INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-396-8118INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-020-5009?

NSN 5945-01-020-5009 is a Relay,electromagnetic, manufactured by Raytheon Company Dba Raytheon, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-020-5009?

NSN 5945-01-020-5009 has 14 cross-referenced part numbers: 538115-9 (Raytheon Company Dba Raytheon), K-D2A-003 (Leach Corp Relay Div), 946958-9 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), 10126767 (Nimikkeistokeskus Ncb Finland), 974-0574-010 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems) and 9 more.

What NSN replaces 5945-01-020-5009?

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

What are the specifications of 538115-9?

Key specifications for 538115-9: 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.).; Main Contact Load Current Rating at Maximum Rated Voltage: 4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD; Mounting Facility Type and Quantity: 3 SLOTTED HOLE SINGLE MOUNTING FACILITY; Main Contact Load Current Rating at Maximum Rated Voltage: 2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD. 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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