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PartsTable / COMPONENT / MILR5757-1
MILR5757-1 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include duty_type: CONTINUOUS, time_delay: 0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME, storage_type: GENERAL PURPOSE WAREHOUSE, thread_class: 2A SINGLE MOUNTING FACILITY A, cubic_measure: 4.814 CUBIC INCHES, overall_width: 1.320 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-458-7204, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MILR5757-1
NSN: 5945-00-458-7204
FSC: 5945
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
duty_typeCONTINUOUS
time_delay0.015 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
storage_typeGENERAL PURPOSE WAREHOUSE
thread_class2A SINGLE MOUNTING FACILITY A
coil_quantity1
cubic_measure4.814 CUBIC INCHES
overall_width1.320 INCHES MAXIMUM IN
overall_height1.940 INCHES MAXIMUM IN
overall_length1.880 INCHES MAXIMUM IN
fragility_factorMODERATELY RUGGED
thread_directionRIGHT-HAND SINGLE MOUNTING FACILITY
winding_quantity1
NSN5945-00-458-7204
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN MILR5757-1 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 300.0 MILLIAMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
•
PURPOSE FOR WHICH DESIGNED: GENERAL
•
COIL QUANTITY: 1
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
•
TEST DATA DOCUMENT: 81349-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 QUANTITY: 20 PIN ALL FUNCTIONS
•
ENVIRONMENTAL PROTECTION: HERMETIC
TECHNICAL CHARACTERISTICS (FLIS)
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE300.0 MILLIAMPERES AC AND 1.0 AMPERES DC RESISTIVE LOAD
PURPOSE FOR WHICH DESIGNEDGENERAL
COIL QUANTITY1
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
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
ENVIRONMENTAL PROTECTIONHERMETIC
OVERALL HEIGHT1.320 INCHES NOMINAL IN
WINDING QUANTITY1
UNTHREADED MOUNTING HOLE DIAMETER0.152 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
MILR5757-1Interchangeable
interchangeable cross-reference
interchangeable
M5757/1-003Interchangeable
interchangeable cross-reference
interchangeable
352250014695Interchangeable
interchangeable cross-reference
interchangeable
M5757/1-103Interchangeable
interchangeable cross-reference
interchangeable
RE-6PDT24-100Interchangeable
interchangeable cross-reference
interchangeable
RY4LC3B3L01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILR5757-1?
MILR5757-1 is a RELAY,ELECTROMAGNETIC.
What parts can replace MILR5757-1?
There are 19 known substitutes for MILR5757-1: MILR5757-1, M5757/1-003, 352250014695 and 16 more. Substitute compatibility should be verified for your specific system.
Is MILR5757-1 still available?
MILR5757-1 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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Last verified: July 2026