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Technical Data Sheet
PartsTable / COMPONENT / 3021051
3021051 ✓ 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 ROLLER,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL, overall_length: 1.2300 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN, special_features: 10 MICROINCH SURFACE FINISH ON OUTSIDE DIAMETER, style_designator: NEEDLE ROLLER, SPHERICAL ENDS, surface_treatment: OXIDE OVERALL, rolling_element_diameter: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-799-4903, 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
3021051
NSN: 3110-00-799-4903
FSC: 3110
CAGE: 89926 — NEW HOLLAND CONSTRUCTION (USA)
SPECIFICATIONS
materialSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
overall_length1.2300 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
special_features10 MICROINCH SURFACE FINISH ON OUTSIDE DIAMETER
style_designatorNEEDLE ROLLER, SPHERICAL ENDS
surface_treatmentOXIDE OVERALL
rolling_element_diameter0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
material_document_and_classification66,AISI/SAE E50100,E51100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationMIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN3110-00-799-4903
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3021051 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
STYLE DESIGNATOR: NEEDLE ROLLER, SPHERICAL ENDS
•
ROLLING ELEMENT DIAMETER: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66,AISI/SAE E50100,E51100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: OXIDE OVERALL
•
MATERIAL: STEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-13924,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
STYLE DESIGNATORNEEDLE ROLLER, SPHERICAL ENDS
ROLLING ELEMENT DIAMETER0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION66,AISI/SAE E50100,E51100 OR E52100 FED STD SINGLE MATERIAL RESPONSE OVERALL
SPECIAL FEATURES10 MICROINCH SURFACE FINISH ON OUTSIDE DIAMETER
OVERALL LENGTH1.2300 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
SURFACE TREATMENTOXIDE OVERALL
MATERIALSTEEL COMP E50100 OR STEEL COMP E51100 OR STEEL COMP E52100 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
A20-1AInterchangeable
interchangeable cross-reference
interchangeable
2105-3Interchangeable
interchangeable cross-reference
interchangeable
A20-1ABInterchangeable
interchangeable cross-reference
interchangeable
0042871-4Interchangeable
interchangeable cross-reference
interchangeable
C392Interchangeable
interchangeable cross-reference
interchangeable
572Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3021051?
3021051 is a ROLLER,BEARING.
What parts can replace 3021051?
There are 26 known substitutes for 3021051: A20-1A, 2105-3, A20-1AB and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3021051?
3021051 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-799-4903. 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