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Technical Data Sheet
PartsTable / COMPONENT / 41818-21
41818-21 ✓ 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: 1.1830 INCHES NOMINAL IN, bore_diameter: 2.6250 INCHES NOMINAL IN, special_features: THIS IS THE CONE ONLY, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-3095, 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
41818-21
NSN: 3110-00-100-3095
FSC: 3110
CAGE: 94764 — PETTIBONE MERCURY CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.1830 INCHES NOMINAL IN
bore_diameter2.6250 INCHES NOMINAL IN
special_featuresTHIS IS THE CONE ONLY
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-3095
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 41818-21 · 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: 1.1830 INCHES NOMINAL IN
•
BORE DIAMETER: 2.6250 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
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 WIDTH1.1830 INCHES NOMINAL IN
BORE DIAMETER2.6250 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
STYLE DESIGNATORNORMAL ANGLE
SPECIAL FEATURESTHIS IS THE CONE ONLY
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
123012Interchangeable
interchangeable cross-reference
interchangeable
371212Interchangeable
interchangeable cross-reference
interchangeable
73-0012Interchangeable
interchangeable cross-reference
interchangeable
15739Interchangeable
interchangeable cross-reference
interchangeable
MX8258MPM56Interchangeable
interchangeable cross-reference
interchangeable
SMD374239Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 41818-21?
41818-21 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 41818-21?
There are 31 known substitutes for 41818-21: 123012, 371212, 73-0012 and 28 more. Substitute compatibility should be verified for your specific system.
Is 41818-21 still available?
41818-21 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