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Technical Data Sheet
PartsTable / COMPONENT / H20305Y1A
H20305Y1A ✓ 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: 25.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 17.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-554-5840, 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
H20305Y1A
NSN: 3110-00-554-5840
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter25.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width17.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
overall_outside_diameter62.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodPRESSED
standard_tolerance_designationABEC NO.1
NSN3110-00-554-5840
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: H20305Y1A · 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
•
OVERALL OUTSIDE DIAMETER: 62.00 MILLIMETERS NOMINAL MM
•
SURFACE FINISH: GROUND
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
RETAINER FABRICATION METHOD: PRESSED
•
BORE DIAMETER: 25.00 MILLIMETERS NOMINAL MM
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER62.00 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
MATERIALSTEEL OVERALL
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
RETAINER FABRICATION METHODPRESSED
BORE DIAMETER25.00 MILLIMETERS NOMINAL MM
OVERALL WIDTH17.0 MILLIMETERS NOMINAL MM
CONTACT ANGLE25.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
6002-377Interchangeable
interchangeable cross-reference
interchangeable
38005Interchangeable
interchangeable cross-reference
interchangeable
4-113-59Interchangeable
interchangeable cross-reference
interchangeable
55443Interchangeable
interchangeable cross-reference
interchangeable
3024601-1Interchangeable
interchangeable cross-reference
interchangeable
74-7065Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H20305Y1A?
H20305Y1A is a BEARING,BALL,ANNULAR.
What parts can replace H20305Y1A?
There are 28 known substitutes for H20305Y1A: 6002-377, 38005, 4-113-59 and 25 more. Substitute compatibility should be verified for your specific system.
Is H20305Y1A still available?
H20305Y1A 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