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1428U73 — BEARING,ROLLER,CYLINDRICAL

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1428U73: BEARING,ROLLER,CYLINDRICAL.

The BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 2.3375 INCHES MINIMUM AND 2.3381 INCHES MAXIMUM IN, surface_finish: GROUND, locating_feature: NONLOCATING, special_features: NO INNER RING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-820-9114, 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
1428U73
NSN: 3110-00-820-9114
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78500 — MERITOR HEAVY VEHICLE SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter2.3375 INCHES MINIMUM AND 2.3381 INCHES MAXIMUM IN
surface_finishGROUND
locating_featureNONLOCATING
special_featuresNO INNER RING
overall_outside_diameter3.9365 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
internal_fit-up_designationSTANDARD
retainer_fabrication_methodMACHINED
standard_tolerance_designationRBEC NO.1
NSN3110-00-820-9114
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1428U73 · 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: MACHINED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOCATING FEATURE: NONLOCATING
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 3.9365 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOCATING FEATURENONLOCATING
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER3.9365 INCHES MINIMUM AND 3.9370 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
SPECIAL FEATURESNO INNER RING
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER2.3375 INCHES MINIMUM AND 2.3381 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
165635Reference document
Same NSN cross-reference
Reference document — Secondary reference
M1309ELReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1428U73?
1428U73 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace 1428U73?
There are 2 known substitutes for 1428U73: 165635, M1309EL. Substitute compatibility should be verified for your specific system.
What is the NSN for 1428U73?
1428U73 is cataloged in the U.S. Government catalog under NSN 3110-00-820-9114. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.