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PartsTable / COMPONENT / 6307C TC/C78
6307C TC/C78 ✓ 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 6307C TC/C78 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-139-9995, 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
6307C TC/C78
NSN: 3110-01-139-9995
FSC: 3110
CAGE: 52676 — SKF USA INC. (USA)
SPECIFICATIONS
Part Number6307C TC/C78
NSN3110-01-139-9995
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6307C TC/C78 · 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
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.5
•
RETAINER FABRICATION METHOD: MACHINED
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
MATERIALSTEEL OUTER RING
MATERIALSTEEL INNER RING
MATERIALSTEEL BALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALPLASTIC PHENOLIC RETAINER
STANDARD TOLERANCE DESIGNATIONABEC NO.5
RETAINER FABRICATION METHODMACHINED
OVERALL WIDTH21.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER80.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
610697Interchangeable
interchangeable cross-reference
interchangeable
900553Interchangeable
interchangeable cross-reference
interchangeable
25T819D7Interchangeable
interchangeable cross-reference
interchangeable
308KDDFS160Interchangeable
interchangeable cross-reference
interchangeable
308SFFB107A006A75C0000-0Interchangeable
interchangeable cross-reference
interchangeable
77608X1MILG3278AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6307C TC/C78?
6307C TC/C78 is a 6307C TC/C78.
What parts can replace 6307C TC/C78?
There are 31 known substitutes for 6307C TC/C78: 610697, 900553, 25T819D7 and 28 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6307C TC/C78?
6307C TC/C78 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-139-9995. 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