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Technical Data Sheet
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6643 — Technical Data Sheet

✓ Verified by PartsTable
Giochi Preziosi · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

CONNECTOR,RECEPTACLE,ELECTRICAL. Key specifications include material: STEEL OVERALL, body_style: STRAIGHT SHAPE, EXTERNAL COUPLING, shell_type: SOLID, thread_class: 2A A, bore_diameter: 0.2420 INCHES NOMINAL IN, overall_width: 0.1932 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-198-1191, 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
6643
NSN: 3110-00-198-1191
FSC: 3110
CAGE: 31435 — LUCAS AEROSPACE POWER EQUIPMENT CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_styleSTRAIGHT SHAPE, EXTERNAL COUPLING
shell_typeSOLID
thread_class2A A
bore_diameter0.2420 INCHES NOMINAL IN
overall_width0.1932 INCHES NOMINAL IN
terminal_typeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
overall_length0.656 INCHES NOMINAL IN
shell_materialCOPPER ALLOY
insert_materialPLASTIC SINGLE MATING END
contact_materialCOPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING
outside_diameter6.500 INCHES NOMINAL IN
NSN3110-00-198-1191
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6643 · Giochi Preziosi ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
RETAINER PIECE QUANTITY: 1
•
RETAINER FABRICATION METHOD: MACHINED
•
OUTSIDE DIAMETER: 0.3625 INCHES NOMINAL IN
•
BORE DIAMETER: 0.2420 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
RETAINER PIECE QUANTITY1
RETAINER FABRICATION METHODMACHINED
OVERALL WIDTH0.1932 INCHES NOMINAL IN
OUTSIDE DIAMETER0.3625 INCHES NOMINAL IN
RETAINER PIECE QUANTITY1
BORE DIAMETER0.2420 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
6643-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
82C861-001InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1881585InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50076HInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
700230InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
E3PZ12259PRInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusEND OF LIFE
AvailabilitySecondary market only
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6643?
6643 is a CONNECTOR,RECEPTACLE,ELECTRICAL manufactured by Giochi Preziosi.
What parts can replace 6643?
There are 8 known substitutes for 6643: 6643-1, 82C861-001, 1881585 and 5 more. Substitute compatibility should be verified for your specific system.
Is 6643 still available?
6643 is currently EOL_RISK.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026