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PartsTable / COMPONENT / MS27997-A1
MS27997-A1 ✓ 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, storage_type: GENERAL PURPOSE WAREHOUSE, overall_width: 3.730 INCHES NOMINAL IN, overall_height: 2.454 INCHES NOMINAL IN, overall_length: 3.305 INCHES NOMINAL IN, fragility_factor: MODERATELY RUGGED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-993-2716, 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
MS27997-A1
NSN: 5945-00-993-2716
FSC: 5945
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
duty_typeCONTINUOUS
storage_typeGENERAL PURPOSE WAREHOUSE
coil_quantity1
overall_width3.730 INCHES NOMINAL IN
overall_height2.454 INCHES NOMINAL IN
overall_length3.305 INCHES NOMINAL IN
fragility_factorMODERATELY RUGGED
winding_quantity1
frequency_in_hertz60.0 NOMINAL
environmental_protectionHERMETIC
mounting_facility_patternRECTANGULAR SINGLE MOUNTING FACILITY
purpose_for_which_designedGENERAL
NSN5945-00-993-2716
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN MS27997-A1 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
TERMINAL TYPE AND QUANTITY: 8 PIN ALL FUNCTIONS
•
WINDING QUANTITY: 1
•
DUTY TYPE: CONTINUOUS
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
•
TEST DATA DOCUMENT: 81349-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.).
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH3.730 INCHES NOMINAL IN
TERMINAL TYPE AND QUANTITY8 PIN ALL FUNCTIONS
WINDING QUANTITY1
OVERALL HEIGHT2.570 INCHES NOMINAL IN
DUTY TYPECONTINUOUS
UNTHREADED MOUNTING HOLE DIAMETER0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
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.).
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.687 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
NONPILE-UP MAIN CONTACT ARRANGEMENT3 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION
COIL QUANTITY1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
570865-3Interchangeable
interchangeable cross-reference
interchangeable
MILR6106Interchangeable
Same NIIN cross-reference
interchangeable
MIL-PRF-6106Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27997-A1?
MS27997-A1 is a RELAY,ELECTROMAGNETIC.
What parts can replace MS27997-A1?
There are 3 known substitutes for MS27997-A1: 570865-3, MILR6106, MIL-PRF-6106. Substitute compatibility should be verified for your specific system.
What is the NSN for MS27997-A1?
MS27997-A1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-993-2716. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026