PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27401-25Relay,electromagnetic

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-01-118-9654 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-118-9654 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-118-9654. Primary manufacturer part number: MS27401-25.
Features
  • Relay,electromagnetic — FSC 5945
  • Arc Quenching Method: AIR
  • Purpose for Which Designed: SPECIFIC
  • Cubic Measure: 1.191 CUBIC INCHES
  • Nominal Operating Current Rating and Type: 110.0 MILLIAMPERES DC SINGLE WINDING
  • Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
  • Winding Quantity: 1
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-118-9654, 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 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 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
NSN5945-01-118-9654
Primary Part NumberMS27401-25
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Arc Quenching MethodAIR
Purpose for Which DesignedSPECIFIC
Cubic Measure1.191 CUBIC INCHES
Nominal Operating Current Rating and Type110.0 MILLIAMPERES DC SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Center to Center Distance Between Mounting Facilities Parallel to Length1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
Terminal Type and Quantity8 WIRE HOOK ALL FUNCTIONS
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Coil Quantity1
Mounting Facility Type and Quantity2 SLOTTED HOLE SINGLE MOUNTING FACILITY
Time Delay0.01 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Storage TypeGENERAL PURPOSE WAREHOUSE
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
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.).
Fragility FactorMODERATELY RUGGED
Specification/standard Data96906-MS27401 GOVERNMENT STANDARD
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Environmental ProtectionHERMETIC
Features ProvidedCOIL VOLTAGE SUPPRESSION AND POLARIZED
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5945-01-207-6456 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
MS27401-25 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
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
Related Parts
5945-01-207-6456INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-118-9654?

NSN 5945-01-118-9654 is a Relay,electromagnetic, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5945 (No Item Name Available). Status: active.

What are the part numbers for NSN 5945-01-118-9654?

NSN 5945-01-118-9654 has 3 cross-referenced part numbers: MS27401-25 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 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).

What NSN replaces 5945-01-118-9654?

There is 1 known substitute for 5945-01-118-9654: 5945-01-207-6456. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27401-25?

Key specifications for MS27401-25: Overall Length: 1.718 INCHES MAXIMUM IN; Arc Quenching Method: AIR; Purpose for Which Designed: SPECIFIC; Cubic Measure: 1.191 CUBIC INCHES. 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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