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Technical Data Sheet
PartsTable / COMPONENT / 5318W
5318W ✓ 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: 90.00 MILLIMETERS NOMINAL MM, overall_width: 2.8750 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 3110-00-156-7979, 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
5318W
NSN: 3110-00-156-7979
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter90.00 MILLIMETERS NOMINAL MM
overall_width2.8750 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
style_designatorLOADING GROOVE, NON-SEPARABLE
overall_outside_diameter190.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
nondefinitive_spec/std_data146 TYPE AND 00 GRADE
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-156-7979
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5318W · 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
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: OUTWARD CONVERGENT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
NONDEFINITIVE SPEC/STD DATA: 146 TYPE AND 00 GRADE
•
SURFACE FINISH: GROUND
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL FIT-UP DESIGNATIONSTANDARD
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STANDARD TOLERANCE DESIGNATIONABEC NO.1
INTERNAL FIT-UP DESIGNATIONSTANDARD
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA146 TYPE AND 00 GRADE
SURFACE FINISHGROUND
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONOUTWARD CONVERGENT
RETAINER FABRICATION METHODPRESSED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
319696-649Interchangeable
interchangeable cross-reference
interchangeable
QR213-44BInterchangeable
interchangeable cross-reference
interchangeable
5318Interchangeable
interchangeable cross-reference
interchangeable
5306X3017AInterchangeable
interchangeable cross-reference
interchangeable
BS4-1657-58Interchangeable
interchangeable cross-reference
interchangeable
A-A-59641Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5318W?
5318W is a BEARING,BALL,ANNULAR.
What parts can replace 5318W?
There are 27 known substitutes for 5318W: 319696-649, QR213-44B, 5318 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5318W?
5318W is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-7979. 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