PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 604388
604388 ✓ 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: 0.9478 INCHES NOMINAL IN, bore_diameter: 1.2500 INCHES NOMINAL IN, first_end_style: CHAMFERED, style_designator: STEEP ANGLE, cone_corner_radius: 0.0625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4357, 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
604388
NSN: 3110-00-142-4357
FSC: 3110
CAGE: 89926 — NEW HOLLAND CONSTRUCTION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.9478 INCHES NOMINAL IN
bore_diameter1.2500 INCHES NOMINAL IN
first_end_styleCHAMFERED
special_featuresDILLED HOLE ON LONGITUDINAL AXIS OPPOSITE DRILLED END 0.188 IN.DIA BY 2.375 IN. DEEP TAPPED 3/8-24 NF 2B BY 0.625 IN. DEEP IN
style_designatorSTEEP ANGLE
cone_corner_radius0.0625 INCHES NOMINAL IN
pin_overall_length3.875 INCHES NOMINAL IN
first_hole_diameter0.375 INCHES NOMINAL IN
pin_overall_diameter0.8748 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN
second_hole_diameter0.188 INCHES NOMINAL IN
first_end_taper_angle45.0 DEGREES NOMINAL
NSN3110-00-142-4357
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 604388 · 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
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STEEP ANGLE
•
CONE WIDTH: 0.9478 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0625 INCHES NOMINAL IN
•
BORE DIAMETER: 1.2500 INCHES NOMINAL IN
•
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)
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTEEP ANGLE
CONE WIDTH0.9478 INCHES NOMINAL IN
CONE CORNER RADIUS0.0625 INCHES NOMINAL IN
BORE DIAMETER1.2500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
604688Interchangeable
interchangeable cross-reference
interchangeable
CP10167Interchangeable
interchangeable cross-reference
interchangeable
43125Interchangeable
interchangeable cross-reference
interchangeable
B465Interchangeable
interchangeable cross-reference
interchangeable
YAV14L65Interchangeable
interchangeable cross-reference
interchangeable
S7-13Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 604388?
604388 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 604388?
There are 19 known substitutes for 604388: 604688, CP10167, 43125 and 16 more. Substitute compatibility should be verified for your specific system.
Is 604388 still available?
604388 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