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Technical Data Sheet
PartsTable / COMPONENT / 604387
604387 ✓ Verified by PartsTable
Kosmos · 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 length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT, material: ALUMINUM ALLOY 2024, leg_thickness: 0.050 INCHES NOMINAL IN, heat_treatment: O-ANNEALED, overall_height: 2.350 INCHES NOMINAL IN, first_tip_style: SQUARE END. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0585, 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
604387
NSN: 3110-00-100-0585
FSC: 3110
CAGE: 89926 — NEW HOLLAND CONSTRUCTION (USA)
SPECIFICATIONS
length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
materialALUMINUM ALLOY 2024
leg_thickness0.050 INCHES NOMINAL IN
heat_treatmentO-ANNEALED
overall_height2.350 INCHES NOMINAL IN
first_tip_styleSQUARE END
top_flange_width2.000 INCHES NOMINAL IN
basic_shape_styleT SHAPE
fabrication_methodEXTRUDED
left_top_inside_angle90.0 DEGREES NOMINAL
right_top_inside_angle90.0 DEGREES NOMINAL
weight_per_unit_measure0.259 POUNDS PER LINEAR FOOT LBS
NSN3110-00-100-0585
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 604387 · Kosmos ⚠ 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OUTSIDE DIAMETER: 3.1250 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
BACKFACE CORNER RADIUS: 0.0630 INCHES NOMINAL IN
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)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OUTSIDE DIAMETER3.1250 INCHES NOMINAL IN
OVERALL WIDTH0.6875 INCHES NOMINAL IN
SPECIAL FEATURESSTEEP ANGLE
MATERIALSTEEL OVERALL
BACKFACE CORNER RADIUS0.0630 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
BT498Interchangeable
interchangeable cross-reference
interchangeable
1264091Interchangeable
interchangeable cross-reference
interchangeable
364969Interchangeable
interchangeable cross-reference
interchangeable
23100Interchangeable
interchangeable cross-reference
interchangeable
173356Interchangeable
interchangeable cross-reference
interchangeable
GTB3161Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 604387?
604387 is a CONE AND ROLLERS,TAPERED ROLLER manufactured by Kosmos.
What parts can replace 604387?
There are 32 known substitutes for 604387: BT498, 1264091, 364969 and 29 more. Substitute compatibility should be verified for your specific system.
Is 604387 still available?
604387 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