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6499-304032-1 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

6499-304032-1: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OUTER RACE, bore_diameter: 3.0621 INCHES MINIMUM AND 3.0625 INCHES MAXIMUM IN, contact_angle: 15.0 DEGREES MINIMUM AND 21.0 DEGREES MAXIMUM, overall_width: 0.6040 INCHES MINIMUM AND 0.6140 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-319-4871, 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
6499-304032-1
NSN: 3110-01-319-4871
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 80070 — LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN ROTARY AND MISSION SYSTEMS DIV RMS- C6ISR (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OUTER RACE
bore_diameter3.0621 INCHES MINIMUM AND 3.0625 INCHES MAXIMUM IN
contact_angle15.0 DEGREES MINIMUM AND 21.0 DEGREES MAXIMUM
overall_width0.6040 INCHES MINIMUM AND 0.6140 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishGROUND
special_featuresDIP BEARING IN OIL
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
overall_outside_diameter3.8746 INCHES MINIMUM AND 3.8750 INCHES MAXIMUM IN
standard_tolerance_designationABEC NO.5
material_document_and_classificationUNABLE TO DECODE
NSN3110-01-319-4871
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 6499-304032-1 · 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 FINISH: GROUND
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 3.8746 INCHES MINIMUM AND 3.8750 INCHES MAXIMUM IN
•
CONTACT ANGLE: 15.0 DEGREES MINIMUM AND 21.0 DEGREES MAXIMUM
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, FACE TO FACE MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.6040 INCHES MINIMUM AND 0.6140 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER3.8746 INCHES MINIMUM AND 3.8750 INCHES MAXIMUM IN
CONTACT ANGLE15.0 DEGREES MINIMUM AND 21.0 DEGREES MAXIMUM
LOAD DIRECTIONANGULAR
SPECIAL FEATURESDIP BEARING IN OIL
STANDARD TOLERANCE DESIGNATIONABEC NO.5
BORE DIAMETER3.0621 INCHES MINIMUM AND 3.0625 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6499-304032-1?
6499-304032-1 is a BEARING,BALL,DUPLEX.
What is the NSN for 6499-304032-1?
6499-304032-1 is cataloged in the U.S. Government catalog under NSN 3110-01-319-4871. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.