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77C718737P001 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

77C718737P001: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include duty_type: INTERMITTENT, time_delay: 0.20 SECONDS MINIMUM AND 180.00 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME, thread_class: 2A SINGLE MOUNTING FACILITY A, overall_width: 6.000 INCHES NOMINAL IN, overall_height: 4.630 INCHES NOMINAL IN, overall_length: 10.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5945-01-163-0171, 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
77C718737P001
NSN: 5945-01-163-0171
FSC: 5945 — Relays and Solenoids
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
duty_typeINTERMITTENT
time_delay0.20 SECONDS MINIMUM AND 180.00 SECONDS MAXIMUM FIXED OPERATE AND RELEASE TIME
thread_class2A SINGLE MOUNTING FACILITY A
coil_quantity1
overall_width6.000 INCHES NOMINAL IN
overall_height4.630 INCHES NOMINAL IN
overall_length10.000 INCHES NOMINAL IN
winding_quantity1
frequency_in_hertz60.0 NOMINAL
nominal_thread_size0.138 INCHES SINGLE MOUNTING FACILITY IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
mounting_facility_patternTRIANGLE SINGLE MOUNTING FACILITY
NSN5945-01-163-0171
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 77C718737P001 MFR RELAY,ELECTROMAGNETIC
KEY FEATURES
•
NONPILE-UP AUXILIARY CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION AND 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
•
MOUNTING FACILITY TYPE AND QUANTITY: 3 THREADED HOLE(S) SINGLE MOUNTING FACILITY
•
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS: 115.0 AC
•
MOUNTING FACILITY PATTERN: TRIANGLE SINGLE MOUNTING FACILITY
•
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE: 30.0 AMPERES AC RESISTIVE LOAD
•
DUTY TYPE: INTERMITTENT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO THE ALTITUDE OF AN ISOSCELES TRIANGLE: 8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
TECHNICAL CHARACTERISTICS
NONPILE-UP AUXILIARY CONTACT ARRANGEMENT1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION AND 1 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION
MOUNTING FACILITY TYPE AND QUANTITY3 THREADED HOLE(S) SINGLE MOUNTING FACILITY
OVERALL HEIGHT4.630 INCHES NOMINAL IN
MAIN CONTACT MAXIMUM VOLTAGE RATING IN VOLTS115.0 AC
MOUNTING FACILITY PATTERNTRIANGLE SINGLE MOUNTING FACILITY
MAIN CONTACT LOAD CURRENT RATING AT MAXIMUM RATED VOLTAGE30.0 AMPERES AC RESISTIVE LOAD
DUTY TYPEINTERMITTENT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO THE ALTITUDE OF AN ISOSCELES TRIANGLE8.000 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
OVERALL LENGTH10.000 INCHES NOMINAL IN
FREQUENCY IN HERTZ60.0 NOMINAL
OTHER ITEMS IN FSC 5945 — Relays and Solenoids
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5945-00-000-0093 5945-00-001-1891 5945-00-001-2622 5945-00-001-2795 5945-00-001-2806 5945-00-001-2938 5945-00-001-3015 5945-00-001-3016
SUBSTITUTES & CROSS-REFERENCES 2
CR2820B111AB2Reference document
Same NSN cross-reference
Reference document — Secondary reference
77C718737Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77C718737P001?
77C718737P001 is a RELAY,ELECTROMAGNETIC.
What parts can replace 77C718737P001?
There are 2 known substitutes for 77C718737P001: CR2820B111AB2, 77C718737. Substitute compatibility should be verified for your specific system.
What is the NSN for 77C718737P001?
77C718737P001 is cataloged in the U.S. Government catalog under NSN 5945-01-163-0171. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.