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PartsTable / COMPONENT / 5666-3
5666-3 ✓ Verified by PartsTable
Tactic · 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 BRUSH SET,ELECTRICAL CONTACT is a Tactic industrial component. Key specifications include color: BLUE, material: STEEL, inside_width: 5.250 INCHES NOMINAL IN, inside_length: 7.250 INCHES NOMINAL IN, end_similarity: IDENTICAL, overall_length: 9.040 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-024-6128, 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
5666-3
NSN: 3040-00-024-6128
FSC: 3040
CAGE: 72599 — ALLIEDSIGNAL INC DBA ALLIED-SIGNAL AEROSPACE CO (USA)
SPECIFICATIONS
colorBLUE
materialSTEEL
inside_width5.250 INCHES NOMINAL IN
inside_length7.250 INCHES NOMINAL IN
step_quantity5
end_similarityIDENTICAL
overall_length9.040 INCHES NOMINAL IN
document_source50340
first_end_styleEXTERNAL THREADED
style_designatorHIGH-CUT DIAGONAL SEAM
component_quantity4
first_end_diameter0.7500 INCHES NOMINAL IN
NSN3040-00-024-6128
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Tactic BRUSH SET,ELECTRICAL CONTACT TITLE COMPONENT PN 5666-3 MFR Tactic BRUSH SET,ELECTRICAL C
KEY FEATURES
•
FIRST END DIAMETER: 0.7500 INCHES NOMINAL IN
•
LARGEST STEP DIAMETER: 1.190 INCHES NOMINAL IN
•
END SIMILARITY: IDENTICAL
•
FIRST END EXTERNAL THREAD LENGTH: 0.430 INCHES NOMINAL IN
•
FIRST END STYLE: EXTERNAL THREADED
•
STEP QUANTITY: 5
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END DIAMETER0.7500 INCHES NOMINAL IN
LARGEST STEP DIAMETER1.190 INCHES NOMINAL IN
END SIMILARITYIDENTICAL
FIRST END EXTERNAL THREAD LENGTH0.430 INCHES NOMINAL IN
OVERALL LENGTH9.040 INCHES NOMINAL IN
FIRST END STYLEEXTERNAL THREADED
STEP QUANTITY5
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
5666-3Interchangeable
interchangeable cross-reference
interchangeable
56003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5666-3?
5666-3 is a BRUSH SET,ELECTRICAL CONTACT manufactured by Tactic.
What parts can replace 5666-3?
There are 2 known substitutes for 5666-3: 5666-3, 56003. Substitute compatibility should be verified for your specific system.
What is the NSN for 5666-3?
5666-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3040-00-024-6128. 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