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PartsTable / COMPONENT / SMC500821
SMC500821 ✓ 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, thread_class: 2B SINGLE MOUNTING FACILITY, overall_length: 2.750 INCHES NOMINAL IN, overall_diameter: 1.370 INCHES NOMINAL IN, nominal_thread_size: 0.086 INCHES SINGLE MOUNTING FACILITY IN, environmental_protection: HERMETIC. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-985-8119, 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
SMC500821
NSN: 5945-00-985-8119
FSC: 5945
CAGE: 37695 — RAYTHEON COMPANY (USA)
SPECIFICATIONS
duty_typeCONTINUOUS
thread_class2B SINGLE MOUNTING FACILITY
coil_quantity1
overall_length2.750 INCHES NOMINAL IN
overall_diameter1.370 INCHES NOMINAL IN
winding_quantity1
nominal_thread_size0.086 INCHES SINGLE MOUNTING FACILITY IN
environmental_protectionHERMETIC
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
mounting_facility_patternIN-LINE SINGLE MOUNTING FACILITY
terminal_type_and_quantity5 PIN ALL FUNCTIONS
winding_dc_resistance_rating270.0 OHMS NOMINAL SINGLE WINDING
NSN5945-00-985-8119
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN SMC500821 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
ENVIRONMENTAL PROTECTION: HERMETIC
•
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP: 26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
•
THREAD CLASS: 2B SINGLE MOUNTING FACILITY
•
COIL QUANTITY: 1
•
NOMINAL THREAD SIZE: 0.086 INCHES SINGLE MOUNTING FACILITY IN
•
DUTY TYPE: CONTINUOUS
•
MOUNTING FACILITY TYPE AND QUANTITY: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
•
WINDING DC RESISTANCE RATING: 270.0 OHMS NOMINAL SINGLE WINDING
TECHNICAL CHARACTERISTICS (FLIS)
ENVIRONMENTAL PROTECTIONHERMETIC
OPERATING VOLTAGE RATING AND TYPE AT SPECIFIED TEMP26.5 VOLTS DC 25 DEG CELSIUS SINGLE WINDING
THREAD CLASS2B SINGLE MOUNTING FACILITY
COIL QUANTITY1
NOMINAL THREAD SIZE0.086 INCHES SINGLE MOUNTING FACILITY IN
DUTY TYPECONTINUOUS
MOUNTING FACILITY TYPE AND QUANTITY2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
WINDING DC RESISTANCE RATING270.0 OHMS NOMINAL SINGLE WINDING
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO LENGTH0.980 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS1200.0 AC AND 1200.0 DC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
FC8S-4Interchangeable
interchangeable cross-reference
interchangeable
81087Interchangeable
interchangeable cross-reference
interchangeable
P8U3C7630Interchangeable
interchangeable cross-reference
interchangeable
RB1H26N352Interchangeable
Same NIIN cross-reference
interchangeable
810000-784Interchangeable
Same NIIN cross-reference
interchangeable
H-8/S4Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SMC500821?
SMC500821 is a RELAY,ELECTROMAGNETIC.
What parts can replace SMC500821?
There are 6 known substitutes for SMC500821: FC8S-4, 81087, P8U3C7630 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SMC500821?
SMC500821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5945-00-985-8119. 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