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Technical Data Sheet
PartsTable / MRO / MK777-294
MK777-294 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 MK777-294 is a the manufacturer industrial component. Key specifications include color: UNABLE TO DECODE, material: PLASTIC, power_source: EXTERNAL, movement_type: VIBRATING REED, overall_width: 3.000 INCHES NOMINAL IN, indicator_type: VIBRATING REED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-649-4724, 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
MRO→ MRO_GENERAL→ MK777-294
NSN: 6625-00-649-4724
FSC: 6625
CAGE: 0BZM1 — MKC ELECTRONICS INC DBA MK ELECTRONICS DIV MKC ELECTRONICS INC, DBA MK ELECTRONICS (USA)
SPECIFICATIONS
colorUNABLE TO DECODE
materialPLASTIC
power_sourceEXTERNAL
movement_typeVIBRATING REED
overall_width3.000 INCHES NOMINAL IN
indicator_typeVIBRATING REED
overall_height3.125 INCHES NOMINAL IN
overall_length3.345 INCHES NOMINAL IN
frequency_rating380.0 HERTZ MINIMUM AND 420.0 HERTZ MAXIMUM
special_featuresRUGGEDIZED
style_designatorRECTANGULAR FLUSH MTG
features_providedMAGNETIC SHIELD
NSN6625-00-649-4724
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MK777-294 TITLE COMPONENT PN MK777-294 MFR MK777-294
KEY FEATURES
•
DIELECTRIC WITHSTANDING VOLTAGE IN VOLTS: 1500.0
•
CIRCUIT ATTACHMENT METHOD AND QUANTITY: 2 THREADED STUD
•
RESONANT REED QUANTITY: 11
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH: 2.250 INCHES NOMINAL IN
•
SURFACE TREATMENT: PAINT
•
FSC APPLICATION DATA: TEST SET,ELECT. EQUIP.
•
SCALE SELECTION METHOD: TERMINAL
TECHNICAL CHARACTERISTICS (FLIS)
DIELECTRIC WITHSTANDING VOLTAGE IN VOLTS1500.0
OVERALL WIDTH3.000 INCHES NOMINAL IN
CIRCUIT ATTACHMENT METHOD AND QUANTITY2 THREADED STUD
RESONANT REED QUANTITY11
CENTER TO CENTER DISTANCE BETWEEN MOUNTING FACILITIES PARALLEL TO WIDTH2.250 INCHES NOMINAL IN
SURFACE TREATMENTPAINT
FSC APPLICATION DATATEST SET,ELECT. EQUIP.
SCALE SELECTION METHODTERMINAL
FEATURES PROVIDEDMAGNETIC SHIELD
FREQUENCY RESPONSE RANGE+380.000 TO 420.000 HERTZ
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
4997Interchangeable
interchangeable cross-reference
interchangeable
RN55D-1212FInterchangeable
interchangeable cross-reference
interchangeable
MFF1-81212FInterchangeable
interchangeable cross-reference
interchangeable
03-0005-149Interchangeable
interchangeable cross-reference
interchangeable
F575Interchangeable
interchangeable cross-reference
interchangeable
8170Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MK777-294?
MK777-294 is a MK777-294. It is classified as a MRO (MRO_GENERAL).
What parts can replace MK777-294?
There are 11 known substitutes for MK777-294: 4997, RN55D-1212F, MFF1-81212F and 8 more. Substitute compatibility should be verified for your specific system.
Is MK777-294 still available?
MK777-294 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026