PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILR5757-1Relay,electromagnetic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5945-00-494-8964 · FSC 5945 · No Item Name Available
Verified by PartsTable
NSN 5945-00-494-8964 — this item is cataloged by the U.S. Government under National Stock Number 5945-00-494-8964. Primary manufacturer part number: MILR5757-1.
Features
  • Relay,electromagnetic — FSC 5945
  • Unthreaded Mounting Hole Diameter: 0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
  • Nonpile-Up Main Contact Arrangement: 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
  • Mounting Facility Type and Quantity: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Mounting Facility Pattern: IN-LINE SINGLE MOUNTING FACILITY
  • Terminal Type and Quantity: 20 PIN ALL FUNCTIONS
  • Winding DC Resistance Rating: 300.0 OHMS NOMINAL SINGLE WINDING
Applications
  • Circuit control and protection
  • Equipment power management
  • Signal routing
General Description

The Relay,electromagnetic, cataloged under National Stock Number 5945-00-494-8964, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5945-00-494-8964
Primary Part NumberMILR5757-1
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
StatusACTIVE
Unthreaded Mounting Hole Diameter0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Operating Voltage Rating and Type at Specified Temp26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
Nonpile-Up Main Contact Arrangement6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Mounting Facility PatternIN-LINE SINGLE MOUNTING FACILITY
Terminal Type and Quantity20 PIN ALL FUNCTIONS
Winding DC Resistance Rating300.0 OHMS NOMINAL SINGLE WINDING
Center to Center Distance Between Mounting Facilities Parallel to Length1.562 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Winding Quantity1
Main Contact Load Current Rating at Maximum Rated Voltage300.0 MILLIAMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
Coil Quantity1
Environmental ProtectionHERMETIC
Duty TypeCONTINUOUS
Main Contact Maximum Voltage Rating in Volts115.0 AC AND 26.5 DC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5945-00-458-7204 INTERCHANGEABLE
Relay,electromagnetic
5945-00-558-9155 INTERCHANGEABLE
Relay,electromagnetic
5945-00-823-2611 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
5945-01-062-5154 INTERCHANGEABLE
Relay,electromagnetic
5945-01-159-4902 INTERCHANGEABLE
Relay,electromagnetic
5945-01-178-6832 INTERCHANGEABLE
Relay,electromagnetic
Cross-Reference Index
Part NumberManufacturer
MILR5757-1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5945-00-458-7204INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-558-9155INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-823-2611INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-874-0602INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-00-905-7719INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-018-1935INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
A13-4155
5945-01-062-5154INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-159-4902INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5945-01-178-6832INTERCHANGEABLE
RELAY,ELECTROMAGNETIC

Frequently Asked Questions

What is NSN 5945-00-494-8964?

NSN 5945-00-494-8964 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: active.

What are the part numbers for NSN 5945-00-494-8964?

NSN 5945-00-494-8964 has 1 cross-referenced part number: MILR5757-1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5945-00-494-8964?

There are 9 known substitutes for 5945-00-494-8964: 5945-00-458-7204, 5945-00-558-9155, 5945-00-823-2611 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILR5757-1?

Key specifications for MILR5757-1: Overall Width: 1.880 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Operating Voltage Rating and Type at Specified Temp: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING; Nonpile-Up Main Contact Arrangement: 6 POLE, DOUBLE THROW, ONE POSITION MOMENTARY. 17 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