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Technical Data Sheet
PartsTable / COMPONENT / 5128X1A
5128X1A ✓ 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: 13.00 MILLIMETERS NOMINAL MM, overall_width: 0.6250 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 3110-00-156-5407, 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
5128X1A
NSN: 3110-00-156-5407
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter13.00 MILLIMETERS NOMINAL MM
overall_width0.6250 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
overall_outside_diameter32.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodSTAMPED
NSN3110-00-156-5407
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 5128X1A · 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
•
RETAINER FABRICATION METHOD: STAMPED
•
MATERIAL: STEEL OVERALL
•
BORE DIAMETER: 13.00 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: ANGULAR
•
BORE SHAPE: STRAIGHT
TECHNICAL CHARACTERISTICS (FLIS)
RETAINER FABRICATION METHODSTAMPED
MATERIALSTEEL OVERALL
BORE DIAMETER13.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONANGULAR
OVERALL WIDTH0.6250 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
MATERIALSTEEL OVERALL
LOAD DIRECTIONANGULAR
OVERALL OUTSIDE DIAMETER32.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
5128Interchangeable
interchangeable cross-reference
interchangeable
RD14Interchangeable
interchangeable cross-reference
interchangeable
8726Interchangeable
interchangeable cross-reference
interchangeable
816933Interchangeable
interchangeable cross-reference
interchangeable
8524237Interchangeable
interchangeable cross-reference
interchangeable
49FInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5128X1A?
5128X1A is a BEARING,BALL,ANNULAR.
What parts can replace 5128X1A?
There are 14 known substitutes for 5128X1A: 5128, RD14, 8726 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 5128X1A?
5128X1A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-5407. 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