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Technical Data Sheet
PartsTable / COMPONENT / 6784721
6784721 ✓ 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 INNER RING, bore_shape: STRAIGHT, bore_diameter: 1.3777 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN, overall_width: 0.6643 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN, load_direction: RADIAL, 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 3110-00-585-5706, 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
6784721
NSN: 3110-00-585-5706
FSC: 3110
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter1.3777 INCHES MINIMUM AND 1.3780 INCHES MAXIMUM IN
overall_width0.6643 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0002 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
overall_outside_diameter2.8342 INCHES MINIMUM AND 2.8346 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.3
material_document_and_classificationAMS 5040 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
NSN3110-00-585-5706
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6784721 · 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
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.3
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL: STEEL INNER RING
•
MATERIAL DOCUMENT AND CLASSIFICATION: EMS 64990,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE BALL
TECHNICAL CHARACTERISTICS (FLIS)
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.3
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONEMS 64990,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE BALL
MATERIAL DOCUMENT AND CLASSIFICATIONEMS 64990,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE INNER RING
MATERIALSTEEL BALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5040 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
MATERIALSTEEL COMP 1010 RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONEMS 64990,FSCM 24617 MFR REF SINGLE MATERIAL RESPONSE OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
207S0306A306A87S4000Interchangeable
interchangeable cross-reference
interchangeable
3207X3073Interchangeable
interchangeable cross-reference
interchangeable
9411324Interchangeable
interchangeable cross-reference
interchangeable
6784720Interchangeable
interchangeable cross-reference
interchangeable
3207AAX3073Interchangeable
interchangeable cross-reference
interchangeable
3207X3073NInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6784721?
6784721 is a BEARING,BALL,ANNULAR.
What parts can replace 6784721?
There are 11 known substitutes for 6784721: 207S0306A306A87S4000, 3207X3073, 9411324 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 6784721?
6784721 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-585-5706. 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