PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS27401-4Relay,electromagnetic

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-00-038-5823 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-038-5823 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-038-5823. Primary manufacturer part number: MS27401-4.
Features
  • Relay,electromagnetic — FSC 5945
  • Environmental Protection: HERMETIC
  • Winding Quantity: 1
  • Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
  • Time Delay: 0.05 SECONDS MAXIMUM FIXED RELEASE TIME
  • Terminal Type and Quantity: 8 PIN ALL FUNCTIONS
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
  • Time Delay: 0.015 SECONDS MAXIMUM FIXED OPERATE TIME
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-038-5823, 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 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 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
NSN5945-00-038-5823
Primary Part NumberMS27401-4
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
Environmental ProtectionHERMETIC
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD
Time Delay0.05 SECONDS MAXIMUM FIXED RELEASE TIME
Terminal Type and Quantity8 PIN ALL FUNCTIONS
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Time Delay0.015 SECONDS MAXIMUM FIXED OPERATE TIME
Operating Voltage Rating and Type at Specified Temp115.0 VOLTS AC 25 DEG CELSIUS SINGLE WINDING
Features ProvidedPOLARIZED
Mounting Facility Type and Quantity1 PLUG-IN TERMINAL(S) SINGLE MOUNTING FACILITY
Nonpile-Up Main Contact Arrangement2 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Coil Quantity1
Frequency in Hertz400.0 NOMINAL
Test Data Document96906-MS27401 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5945-01-129-7628 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
MS27401-4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
JAD4F002 Leach International Corp Div Leach International Corporation (USA)
Related Parts
5945-01-129-7628INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-038-5823?

NSN 5945-00-038-5823 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 5945-00-038-5823?

NSN 5945-00-038-5823 has 2 cross-referenced part numbers: MS27401-4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), JAD4F002 (Leach International Corp Div Leach International Corporation).

What NSN replaces 5945-00-038-5823?

There is 1 known substitute for 5945-00-038-5823: 5945-01-129-7628. Verify interchangeability with system specifications before substitution.

What are the specifications of MS27401-4?

Key specifications for MS27401-4: Environmental Protection: HERMETIC; Winding Quantity: 1; Main Contact Load Current Rating at Maximum Rated Voltage: 10.0 AMPERES AC AND 10.0 AMPERES DC RESISTIVE LOAD; Time Delay: 0.05 SECONDS MAXIMUM FIXED RELEASE TIME. 18 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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