PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 3490-3420
3490-3420 ✓ 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

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include criticality_code_justification: ZZZY, part_name_assigned_by_controlling_agency: BEARING, ROLLER, TAPE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-5920, 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
3490-3420
NSN: 3110-00-100-5920
FSC: 3110
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
part_name_assigned_by_controlling_agencyBEARING, ROLLER, TAPE
NSN3110-00-100-5920
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3490-3420 · 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 CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
CONE WIDTH: 1.1721 INCHES NOMINAL IN
•
CUP WIDTH: 0.9375 INCHES NOMINAL IN
•
NONDEFINITIVE SPEC/STD DATA: 751 TYPE
•
BORE DIAMETER: 1.5000 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)
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
OVERALL WIDTH1.1563 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
CONE WIDTH1.1721 INCHES NOMINAL IN
CUP WIDTH0.9375 INCHES NOMINAL IN
NONDEFINITIVE SPEC/STD DATA751 TYPE
BORE DIAMETER1.5000 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
STANDOUT WIDTH0.2188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
103705Interchangeable
interchangeable cross-reference
interchangeable
MS51838-106Interchangeable
interchangeable cross-reference
interchangeable
129020Interchangeable
interchangeable cross-reference
interchangeable
3DD5Interchangeable
interchangeable cross-reference
interchangeable
1779Interchangeable
interchangeable cross-reference
interchangeable
A13777AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3490-3420?
3490-3420 is a BEARING,ROLLER,TAPERED.
What parts can replace 3490-3420?
There are 22 known substitutes for 3490-3420: 103705, MS51838-106, 129020 and 19 more. Substitute compatibility should be verified for your specific system.
Is 3490-3420 still available?
3490-3420 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