PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M5757/1-103Relay,electromagnetic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-00-823-2611 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-823-2611 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-823-2611. Primary manufacturer part number: M5757/1-103.
Features
  • Relay,electromagnetic — FSC 5945
  • Specification/standard Data: 81349-MIL-R-5757/1 GOVERNMENT SPECIFICATION
  • Unthreaded Mounting Hole Diameter: 0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC
  • Coil Quantity: 1
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Center to Center Distance Between Mounting Facilities Parallel to Length: 1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-823-2611, 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 Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5945-00-823-2611
Primary Part NumberM5757/1-103
Item NameRelay,electromagnetic
FSC / FSG5945 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Specification/standard Data81349-MIL-R-5757/1 GOVERNMENT SPECIFICATION
Unthreaded Mounting Hole Diameter0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 28.0 DC
Coil Quantity1
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Center to Center Distance Between Mounting Facilities Parallel to Length1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Test Data Document81349-MIL-R-5757 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.).
Terminal Type and Quantity20 PIN ALL FUNCTIONS
Winding Quantity1
Winding DC Resistance Rating190.0 OHMS NOMINAL SINGLE WINDING
Operating Voltage Rating and Type at Specified Temp28.0 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Main Contact Load Current Rating at Maximum Rated Voltage0.3 AMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Environmental ProtectionHERMETIC
Nonpile-Up Main Contact Arrangement6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Duty TypeCONTINUOUS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5945-00-458-7204 INTERCHANGEABLE
Relay,electromagnetic
5945-00-494-8964 INTERCHANGEABLE
Relay,electromagnetic
5945-00-558-9155 INTERCHANGEABLE
Relay,electromagnetic
5945-00-874-0602 INTERCHANGEABLE
Relay,electromagnetic
5945-00-905-7719 INTERCHANGEABLE
Relay,electromagnetic
5945-01-018-1935A13-4155 INTERCHANGEABLE
Relay,electromagnetic
Dri Relays Inc. Dba Dri Relays Inc
5945-01-047-9194M5757-1-103 INTERCHANGEABLE
Relay,electromagnetic
Dri Relays Inc. Dba Dri Relays Inc
5945-01-062-5154 INTERCHANGEABLE
Relay,electromagnetic
5945-01-159-4902 INTERCHANGEABLE
Relay,electromagnetic
5945-01-178-6832 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
M5757/1-103 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
RE-6PDT24-100 Insilco Corp Ren Electronics Div (USA)
RY4LC3B3L01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5757/1-102 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-R-5757/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-00-458-7204INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-494-8964INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-558-9155INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-874-0602INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-905-7719INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-018-1935INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A13-4155
5945-01-047-9194INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
M5757-1-103
5945-01-062-5154INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-159-4902INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-178-6832INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-823-2611?

NSN 5945-00-823-2611 is a Relay,electromagnetic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5945 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5945-00-823-2611?

NSN 5945-00-823-2611 has 5 cross-referenced part numbers: M5757/1-103 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), RE-6PDT24-100 (Insilco Corp Ren Electronics Div), RY4LC3B3L01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5757/1-102 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-R-5757/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5945-00-823-2611?

There are 10 known substitutes for 5945-00-823-2611: 5945-00-458-7204, 5945-00-494-8964, 5945-00-558-9155 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M5757/1-103?

Key specifications for M5757/1-103: Specification/standard Data: 81349-MIL-R-5757/1 GOVERNMENT SPECIFICATION; Unthreaded Mounting Hole Diameter: 0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY; Main Contact Maximum Voltage Rating in Volts: 115.0 AC AND 28.0 DC. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5945-00-823-2611 still in active supply?

NSN 5945-00-823-2611 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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