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Technical Data Sheet
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LM613449XX-20347 — Technical Data Sheet

✓ 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: 0.8660 INCHES NOMINAL IN, bore_diameter: 2.7500 INCHES MINIMUM AND 2.7505 INCHES MAXIMUM IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0600 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 3110-00-001-4661, 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
LM613449XX-20347
NSN: 3110-00-001-4661
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.8660 INCHES NOMINAL IN
bore_diameter2.7500 INCHES MINIMUM AND 2.7505 INCHES MAXIMUM IN
style_designatorNORMAL ANGLE
cone_corner_radius0.0600 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-001-4661
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: LM613449XX-20347 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE WIDTH: 0.8660 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0600 INCHES NOMINAL IN
•
BORE DIAMETER: 2.7500 INCHES MINIMUM AND 2.7505 INCHES MAXIMUM 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
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
CONE WIDTH0.8660 INCHES NOMINAL IN
CONE CORNER RADIUS0.0600 INCHES NOMINAL IN
BORE DIAMETER2.7500 INCHES MINIMUM AND 2.7505 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
D304104-29Same_fsc
same_fsc cross-reference
same_fsc
B-76-OHSame_fsc
same_fsc cross-reference
same_fsc
5900665Same_fsc
same_fsc cross-reference
same_fsc
AS27641Same_fsc
same_fsc cross-reference
same_fsc
MKP20ASame_fsc
same_fsc cross-reference
same_fsc
LM613410XX-20397Same_fsc
same_fsc cross-reference
same_fsc
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LM613449XX-20347?
LM613449XX-20347 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace LM613449XX-20347?
There are 16 known substitutes for LM613449XX-20347: D304104-29, B-76-OH, 5900665 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for LM613449XX-20347?
LM613449XX-20347 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-001-4661. 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: September 2026