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Technical Data Sheet
PartsTable / COMPONENT / 5309Q6B4
5309Q6B4 ✓ Verified by PartsTable
— · 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

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 45.00 MILLIMETERS NOMINAL MM, overall_width: 1.5625 INCHES NOMINAL IN, load_direction: ANGULAR, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3671, 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
5309Q6B4
NSN: 3110-00-554-3671
FSC: 3110
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter45.00 MILLIMETERS NOMINAL MM
overall_width1.5625 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter100.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
internal_fit-up_contact_angular_directionINWARD CONVERGENT
NSN3110-00-554-3671
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5309Q6B4 · OEM ⚠ 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL OVERALL
•
RETAINER FABRICATION METHOD: PRESSED
•
OVERALL OUTSIDE DIAMETER: 100.00 MILLIMETERS NOMINAL MM
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: INWARD CONVERGENT
•
BORE DIAMETER: 45.00 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OVERALL
RETAINER FABRICATION METHODPRESSED
OVERALL OUTSIDE DIAMETER100.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONINWARD CONVERGENT
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONANGULAR
SURFACE FINISHGROUND
OVERALL WIDTH1.5625 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
306FFInterchangeable
interchangeable cross-reference
interchangeable
386P436G01Interchangeable
interchangeable cross-reference
interchangeable
177002-131Interchangeable
interchangeable cross-reference
interchangeable
5309Interchangeable
interchangeable cross-reference
interchangeable
A149518Interchangeable
interchangeable cross-reference
interchangeable
900309Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5309Q6B4?
5309Q6B4 is a BEARING,BALL,ANNULAR.
What parts can replace 5309Q6B4?
There are 22 known substitutes for 5309Q6B4: 306FF, 386P436G01, 177002-131 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5309Q6B4?
5309Q6B4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-3671. 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