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Technical Data Sheet
PartsTable / COMPONENT / A02DS270-1
A02DS270-1 ✓ 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: 8.9993 INCHES MINIMUM AND 9.0000 INCHES MAXIMUM IN, overall_width: 1.1830 INCHES MINIMUM AND 1.1880 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 3110-00-919-5040, 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
A02DS270-1
NSN: 3110-00-919-5040
FSC: 3110
CAGE: 77272 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_shapeSTRAIGHT
bore_diameter8.9993 INCHES MINIMUM AND 9.0000 INCHES MAXIMUM IN
overall_width1.1830 INCHES MINIMUM AND 1.1880 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designator4 POINT BALL CONTACT, SPLIT INNER RING, SEPARABLE
internal_clearance0.0028 INCHES MINIMUM RADIAL AND 0.0038 INCHES MAXIMUM RADIAL IN
overall_outside_diameter11.4992 INCHES MINIMUM AND 11.5000 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO.3
NSN3110-00-919-5040
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A02DS270-1 · 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 CLEARANCE: 0.0028 INCHES MINIMUM RADIAL AND 0.0038 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 11.4992 INCHES MINIMUM AND 11.5000 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
MATERIAL: STEEL INNER RING
•
STYLE DESIGNATOR: 4 POINT BALL CONTACT, SPLIT INNER RING, SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL CLEARANCE0.0028 INCHES MINIMUM RADIAL AND 0.0038 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER11.4992 INCHES MINIMUM AND 11.5000 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
MATERIALSTEEL INNER RING
MATERIALCOPPER ALLOY RETAINER
STYLE DESIGNATOR4 POINT BALL CONTACT, SPLIT INNER RING, SEPARABLE
MATERIALSTEEL BALL
MATERIALSTEEL OUTER RING
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
90511Interchangeable
interchangeable cross-reference
interchangeable
H9051-1Interchangeable
interchangeable cross-reference
interchangeable
005-13-019Interchangeable
interchangeable cross-reference
interchangeable
3202-1715Interchangeable
interchangeable cross-reference
interchangeable
A-A-55557-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A02DS270-1?
A02DS270-1 is a BEARING,BALL,ANNULAR.
What parts can replace A02DS270-1?
There are 5 known substitutes for A02DS270-1: 90511, H9051-1, 005-13-019 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A02DS270-1?
A02DS270-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-919-5040. 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