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Technical Data Sheet
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MK777-51 — Technical Data Sheet

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— · 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 MK777-51 is a the manufacturer industrial component. Key specifications include end_item_identification: VALVE,GLOBE 1.25IPS 6000PSI BRONZE THREADED, criticality_code_justification: ZZZY, reference_number_differentiating_characteristics: QUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6625-00-489-8671, 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→ MK777-51
NSN: 6625-00-489-8671
FSC: 6625
CAGE: 0BZM1 — MKC ELECTRONICS INC DBA MK ELECTRONICS DIV MKC ELECTRONICS INC, DBA MK ELECTRONICS (USA)
SPECIFICATIONS
end_item_identificationVALVE,GLOBE 1.25IPS 6000PSI BRONZE THREADED
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsQUALITY CONTROL IAW NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS
NSN6625-00-489-8671
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available MK777-51 TITLE COMPONENT PN MK777-51 MFR MK777-51
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
A1311TFSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FF-B-185InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M2366InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
003816InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
516759InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M3747-2546 ITEMS 2 THRU 16InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99ESD SensitiveNot HAZMATSourcing: other
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FREQUENTLY ASKED QUESTIONS
What is MK777-51?
MK777-51 is a MK777-51. It is classified as a MRO (MRO_GENERAL).
What parts can replace MK777-51?
There are 10 known substitutes for MK777-51: A1311TFS, FF-B-185, M2366 and 7 more. Substitute compatibility should be verified for your specific system.
Is MK777-51 still available?
MK777-51 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: September 2026