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F-666-12X — TERMINAL,LUG

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

F-666-12X: TERMINAL,LUG.

The TERMINAL,LUG is a the manufacturer industrial component. Key specifications include material: COPPER MOUNTING FACILITY, largest_width: 0.678 INCHES FIRST END IN, overall_width: 0.678 INCHES IN, overall_length: 1.846 INCHES IN, special_features: CAGE 1UX99 MOLEX, LLC OEM,OVERALL LENGTH 1.062, basic_shape_style: SOLDER/SOLDERLESS. This part is cataloged in the U.S.

Government catalog under NSN 5940-01-668-8335, 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
F-666-12X
NSN: 5940-01-668-8335
FSC: 5940 — Lugs, Terminals, and Terminal Strips
CAGE: 1UX99 — MOLEX, LLC (USA)
SPECIFICATIONS
materialCOPPER MOUNTING FACILITY
largest_width0.678 INCHES FIRST END IN
overall_width0.678 INCHES IN
overall_length1.846 INCHES IN
special_featuresCAGE 1UX99 MOLEX, LLC OEM,OVERALL LENGTH 1.062
basic_shape_styleSOLDER/SOLDERLESS
surface_treatmentTIN OVERALL EXCEPT INSULATION SINGLE LAYER
material_thickness0.067 INCHES IN
mounting_method_styleSTRAIGHT ONE HOLE
mounting_tongue_width0.562 INCHES IN
mounting_hole_diameter0.50 INCHES IN
identification_code_colorYELLOW
NSN5940-01-668-8335
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TERMINAL,LUG TITLE COMPONENT PN F-666-12X MFR TERMINAL,LUG
KEY FEATURES
•
IDENTIFICATION CODE COLOR: YELLOW
•
MOUNTING FACILITY THICKNESS: 0.067 INCHES IN
•
CONDUCTOR ACCOMMODATION TYPE STYLE: FLAT LUG SINGLE END
•
MOUNTING HOLE DIAMETER: 0.50 INCHES IN
•
MAXIMUM CONDUCTOR SIZE ACCOMMODATED: 4 AWG
•
DISTANCE FROM MOUNTING HOLE CENTER TO MOUNTING END: 0.312 INCHES IN
•
BASIC SHAPE STYLE: SOLDER/SOLDERLESS
TECHNICAL CHARACTERISTICS
IDENTIFICATION CODE COLORYELLOW
OVERALL LENGTH1.846 INCHES IN
MOUNTING FACILITY THICKNESS0.067 INCHES IN
CONDUCTOR ACCOMMODATION TYPE STYLEFLAT LUG SINGLE END
MOUNTING HOLE DIAMETER0.50 INCHES IN
MAXIMUM CONDUCTOR SIZE ACCOMMODATED4 AWG
DISTANCE FROM MOUNTING HOLE CENTER TO MOUNTING END0.312 INCHES IN
BASIC SHAPE STYLESOLDER/SOLDERLESS
MOUNTING METHOD STYLESTRAIGHT ONE HOLE
ELECTRICAL INSULATION FEATUREINSULATING SLEEVE
OTHER ITEMS IN FSC 5940 — Lugs, Terminals, and Terminal Strips
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5940-00-000-0045 5940-00-000-0235 5940-00-001-1331 5940-00-001-1332 5940-00-001-1333 5940-00-001-1335 5940-00-001-1336 5940-00-001-1358
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F-666-12X?
F-666-12X is a TERMINAL,LUG.
What is the NSN for F-666-12X?
F-666-12X is cataloged in the U.S. Government catalog under NSN 5940-01-668-8335. 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.