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Technical Data Sheet
PartsTable / COMPONENT / 904057
904057 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 2.1693 INCHES NOMINAL IN, bore_diameter: 3.2500 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1410 INCHES NOMINAL IN, standard_tolerance_designation: AFBMA CLASS 2. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3341, 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
904057
NSN: 3110-00-227-3341
FSC: 3110
CAGE: 61822 — AMCA INTL CORP UNIT CRANE DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width2.1693 INCHES NOMINAL IN
bore_diameter3.2500 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1410 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-227-3341
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 904057 · 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
•
CONE WIDTH: 2.1693 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1410 INCHES NOMINAL IN
•
BORE DIAMETER: 3.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
CONE WIDTH2.1693 INCHES NOMINAL IN
CONE CORNER RADIUS0.1410 INCHES NOMINAL IN
BORE DIAMETER3.2500 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
6559Interchangeable
interchangeable cross-reference
interchangeable
878932Interchangeable
interchangeable cross-reference
interchangeable
K8691130-48Interchangeable
interchangeable cross-reference
interchangeable
6995870P57Interchangeable
interchangeable cross-reference
interchangeable
6701268Interchangeable
interchangeable cross-reference
interchangeable
AC14160Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 904057?
904057 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 904057?
There are 15 known substitutes for 904057: 6559, 878932, K8691130-48 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 904057?
904057 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3341. 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