PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27401-31MRelay,electromagnetic

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-01-207-6456 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-207-6456 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-207-6456. Primary manufacturer part number: MS27401-31M.
Features
  • Relay,electromagnetic — FSC 5945
  • Fragility Factor: MODERATELY RUGGED
  • Main Contact Maximum Voltage Rating in Volts: 200.0 AC AND 28.0 DC
  • Main Contact Load Current Rating at Maximum Rated Voltage: 4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
  • Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
  • Purpose for Which Designed: GENERAL
  • Arc Quenching Method: AIR
  • Main Contact Load Current Rating at Maximum Rated Voltage: 8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-207-6456, 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 14 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-01-207-6456
Primary Part NumberMS27401-31M
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
Fragility FactorMODERATELY RUGGED
Main Contact Maximum Voltage Rating in Volts200.0 AC AND 28.0 DC
Main Contact Load Current Rating at Maximum Rated Voltage4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Purpose for Which DesignedGENERAL
Arc Quenching MethodAIR
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Features ProvidedPOLARIZED
Time Delay0.01 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
Center to Center Distance Between Mounting Facilities Parallel to Length1.396 INCHES MINIMUM AND 1.446 INCHES MAXIMUM SINGLE MOUNTING FACILITY IN
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
Environmental ProtectionHERMETIC
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Cubic Measure0.726 CUBIC INCHES
Test Data Document81349-MIL-R-83536 SPECIFICATION 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.).
Coil Quantity1
Winding Quantity1
Nominal Operating Current Rating and Type110.0 MILLIAMPERES DC SINGLE WINDING
Mounting Slot Width0.150 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Criticality Code JustificationFEAT
Duty TypeCONTINUOUS
Specification/standard Data81349--83536/10 SPECIFICATION GOVERNMENT SPECIFICATION
Mounting Facility Type and Quantity2 SLOTTED HOLE SINGLE MOUNTING FACILITY
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Storage TypeGENERAL PURPOSE WAREHOUSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-01-118-9654 INTERCHANGEABLE
Relay,electromagnetic
5945-01-127-3807 INTERCHANGEABLE
Relay,electromagnetic
5945-01-275-2965 INTERCHANGEABLE
Relay,electromagnetic
5945-01-313-7980 INTERCHANGEABLE
Relay,electromagnetic
5945-01-396-0626 INTERCHANGEABLE
Relay,electromagnetic
5945-01-412-3374 INTERCHANGEABLE
Relay,electromagnetic
5945-01-418-5651 INTERCHANGEABLE
Relay,electromagnetic
5945-01-431-3696 INTERCHANGEABLE
Relay,electromagnetic
5945-01-438-0535 INTERCHANGEABLE
Relay,electromagnetic
5945-01-442-8580 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
MS27401-31M Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
M83536/10-023M Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
7D3-04813-2 Lake Shore Systems, Inc. (USA)
10132666 Nimikkeistokeskus Ncb Finland (FIN)
5945PL1949285 Jednolity Indeks Materialowy - Uniform Material Index (POL)
MS27401-31X Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-83536/10 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27401-31 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27401-25 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-83536 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS27401-31U Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
M83536/10-023L 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
M83536/10-023L Royal Malaysian Airforce (MYS)
Related Parts
5945-01-118-9654INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-127-3807INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-275-2965INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-313-7980INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-396-0626INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-412-3374INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-418-5651INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-431-3696INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-438-0535INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-442-8580INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-442-9417INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-465-4590INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-207-6456?

NSN 5945-01-207-6456 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 5945-01-207-6456?

NSN 5945-01-207-6456 has 14 cross-referenced part numbers: MS27401-31M (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), M83536/10-023M (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 7D3-04813-2 (Lake Shore Systems, Inc.), 10132666 (Nimikkeistokeskus Ncb Finland), 5945PL1949285 (Jednolity Indeks Materialowy - Uniform Material Index) and 9 more.

What NSN replaces 5945-01-207-6456?

There are 12 known substitutes for 5945-01-207-6456: 5945-01-118-9654, 5945-01-127-3807, 5945-01-275-2965 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27401-31M?

Key specifications for MS27401-31M: Fragility Factor: MODERATELY RUGGED; Main Contact Maximum Voltage Rating in Volts: 200.0 AC AND 28.0 DC; Main Contact Load Current Rating at Maximum Rated Voltage: 4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD; Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD. 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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