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Technical Data Sheet
PartsTable / COMPONENT / KP6AA1488
KP6AA1488 ✓ 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,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING RETAINER, bore_diameter: 0.3750 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.3130 INCHES NOMINAL IN, outer_ring_width: 0.2500 INCHES NOMINAL IN, style_designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-034-5257, 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
KP6AA1488
NSN: 3110-00-034-5257
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING RETAINER
bore_diameter0.3750 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
inner_ring_width0.3130 INCHES NOMINAL IN
outer_ring_width0.2500 INCHES NOMINAL IN
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_typeCONTACT
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
overall_outside_diameter0.8750 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES BALL
NSN3110-00-034-5257
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: KP6AA1488 · 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
•
BEARING SEAL TYPE: CONTACT
•
INNER RING WIDTH: 0.3130 INCHES NOMINAL IN
•
OUTER RING WIDTH: 0.2500 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
•
SEAL QUANTITY: 2
•
LOAD DIRECTION: RADIAL
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
TECHNICAL CHARACTERISTICS (FLIS)
BEARING SEAL TYPECONTACT
INNER RING WIDTH0.3130 INCHES NOMINAL IN
OUTER RING WIDTH0.2500 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
SEAL QUANTITY2
SPECIAL FEATURES80 PCT. FULL OF MIL-G-81322,INTERNAL RADIAL CLEARANCE 0.0004- 0.0010 IN.,HEAT TREAT RINGS AND BALLS TO ROCKWELL C 60 TO 66 AND STABILIZED FOR OPERATION AT 250 DEG. F,RADIAL AND LATERAL ECCENTRICITY INNER RING 0.0010 IN. OUTER RING 0.0016 IN. IN
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
BORE DIAMETER0.3750 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE ROW INNER RING EXTENDED BOTH SIDES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
AS27641Interchangeable
interchangeable cross-reference
interchangeable
MKP20AInterchangeable
interchangeable cross-reference
interchangeable
MS27641-10Interchangeable
interchangeable cross-reference
interchangeable
561-6404325-31Interchangeable
interchangeable cross-reference
interchangeable
MS27641-12Interchangeable
interchangeable cross-reference
interchangeable
AS7949Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is KP6AA1488?
KP6AA1488 is a BEARING,BALL,AIRFRAME.
What parts can replace KP6AA1488?
There are 29 known substitutes for KP6AA1488: AS27641, MKP20A, MS27641-10 and 26 more. Substitute compatibility should be verified for your specific system.
Is KP6AA1488 still available?
KP6AA1488 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026