PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27401-57XRelay,electromagnetic

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-01-294-7572 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-01-294-7572 — this item is cataloged by the U.S. Government under National Stock Number 5945-01-294-7572. Primary manufacturer part number: MS27401-57X.
Features
  • Relay,electromagnetic — FSC 5945
  • Duty Type: CONTINUOUS
  • Arc Quenching Method: AIR
  • Coil Quantity: 1
  • Cubic Measure: 0.605 CUBIC INCHES
  • Frequency in Hertz: 50.0 MINIMUM AND 400.0 MAXIMUM
  • Environmental Protection: HERMETIC
  • Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-01-294-7572, 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 25 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 2 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
NSN5945-01-294-7572
Primary Part NumberMS27401-57X
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
Duty TypeCONTINUOUS
Arc Quenching MethodAIR
Coil Quantity1
Cubic Measure0.605 CUBIC INCHES
Frequency in Hertz50.0 MINIMUM AND 400.0 MAXIMUM
Environmental ProtectionHERMETIC
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Winding Quantity1
Storage TypeGENERAL PURPOSE WAREHOUSE
Fragility FactorMODERATELY RUGGED
Purpose for Which DesignedGENERAL
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.).
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Criticality Code JustificationFEAT
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Main Contact Load Current Rating at Maximum Rated Voltage2.0 AMPERES AC AND 2.0 AMPERES DC LAMP LOAD
Nominal Operating Current Rating and Type30.0 MILLIAMPERES DC SINGLE WINDING
Time Delay0.05 SECONDS MAXIMUM FIXED RELEASE TIME
Specification/standard Data96906-MS27401 GOVERNMENT STANDARD
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Main Contact Load Current Rating at Maximum Rated Voltage8.0 AMPERES AC AND 8.0 AMPERES DC INDUCTIVE LOAD
Main Contact Load Current Rating at Maximum Rated Voltage4.0 AMPERES AC AND 4.0 AMPERES DC MOTOR LOAD
Time Delay0.02 SECONDS MAXIMUM FIXED OPERATE TIME
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5945-01-129-7628 INTERCHANGEABLE
Relay,electromagnetic
5945-01-248-1898 INTERCHANGEABLE
Relay,electromagnetic
5945-01-287-6657 INTERCHANGEABLE
Relay,electromagnetic
5945-01-308-2060 INTERCHANGEABLE
Relay,electromagnetic
5945-01-406-2899 INTERCHANGEABLE
Relay,electromagnetic
5945-01-410-8745 INTERCHANGEABLE
Relay,electromagnetic
5945-01-416-4187 INTERCHANGEABLE
Relay,electromagnetic
5945-01-470-8521 INTERCHANGEABLE
Relay,electromagnetic
5945-01-478-5203 INTERCHANGEABLE
Relay,electromagnetic
5945-01-495-7660 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
MS27401-57X 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
MS27401-57U Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
M83536/11-010M Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-83536/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-83536/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83536/11-010L Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-01-129-7628INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-248-1898INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-287-6657INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-308-2060INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-406-2899INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-410-8745INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-416-4187INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-470-8521INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-478-5203INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-495-7660INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-587-6256INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-666-8973INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-01-294-7572?

NSN 5945-01-294-7572 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 5945-01-294-7572?

NSN 5945-01-294-7572 has 7 cross-referenced part numbers: MS27401-57X (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), MS27401-57U (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), M83536/11-010M (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-83536/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 5945-01-294-7572?

There are 12 known substitutes for 5945-01-294-7572: 5945-01-129-7628, 5945-01-248-1898, 5945-01-287-6657 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27401-57X?

Key specifications for MS27401-57X: Overall Length: 1.005 INCHES MINIMUM AND 1.025 INCHES MAXIMUM IN; Overall Width: 0.505 INCHES MINIMUM AND 0.525 INCHES MAXIMUM IN; Duty Type: CONTINUOUS; Arc Quenching Method: AIR. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com