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Technical Data Sheet
PartsTable / COMPONENT / 311420
311420 ✓ 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 IBM 146.8GB 10K 2Gbps FC HS is a the manufacturer networking component designed for high-speed data center interconnects and enterprise network infrastructure. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, design_type: BIDIRECTIONAL, bore_diameter: 35.00 MILLIMETERS NOMINAL MM, contact_angle: 25.0 DEGREES MAXIMUM, overall_width: 1.0625 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4850, 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
311420
NSN: 3110-00-156-4850
FSC: 3110
CAGE: 40152 — VME AMERICAS INC SUB OF VME GROUP N V (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
design_typeBIDIRECTIONAL
bore_diameter35.00 MILLIMETERS NOMINAL MM
contact_angle25.0 DEGREES MAXIMUM
overall_width1.0625 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
overall_diameter4.000 INCHES NOMINAL IN
style_designatorLOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
radio_frequency_rating1.0 GIGAHERTZ MINIMUM AND 2.0 GIGAHERTZ MAXIMUM
NSN3110-00-156-4850
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 311420 · 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
•
146.8GB Capacity
•
10K RPM Speed
•
OVERALL OUTSIDE DIAMETER: 72.00 MILLIMETERS NOMINAL MM
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
•
LUBRICATION MATERIAL: GREASE
•
CONTACT ANGLE: 25.0 DEGREES MAXIMUM
•
SURFACE FINISH: GROUND
•
INTERNAL FIT-UP CONTACT ANGULAR DIRECTION: INWARD CONVERGENT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TYPICAL APPLICATIONS
  • Data center top-of-rack switching
  • High-speed server interconnects (10G/25G/40G/100G)
  • Storage network fabric (iSCSI, FCoE)
  • Campus and branch network infrastructure
  • Firewall and security appliance connectivity
  • WAN edge and SD-WAN deployments
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER72.00 MILLIMETERS NOMINAL MM
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
LUBRICATION MATERIALGREASE
CONTACT ANGLE25.0 DEGREES MAXIMUM
SURFACE FINISHGROUND
INTERNAL FIT-UP CONTACT ANGULAR DIRECTIONINWARD CONVERGENT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
LOAD DIRECTIONANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
132210-000Interchangeable
interchangeable cross-reference
interchangeable
10283Interchangeable
interchangeable cross-reference
interchangeable
AE9295Interchangeable
interchangeable cross-reference
interchangeable
MIL-S-37080Interchangeable
Slippers,convalescent Patients'
interchangeable
5207Interchangeable
IBM 146.8GB 10K 2Gbps FC HS
interchangeable
120394Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 311420?
311420 is a IBM 146.8GB 10K 2Gbps FC HS.
What parts can replace 311420?
There are 26 known substitutes for 311420: 132210-000, 10283, AE9295 and 23 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 311420?
311420 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-4850. 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: July 2026