PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 3-B
3-B ✓ 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

CAPACITOR,FIXED,CERAMIC DIELECTR. Key specifications include phase: THREE, width: 9.0 INCHES NOMINAL IN, gasket: NOT INCLUDED, length: 9.0 INCHES NOMINAL IN, diameter: 0.750 INCHES NOMINAL IN, material: STEEL OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8499, 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
3-B
NSN: 3110-00-144-8499
FSC: 3110
CAGE: A0045 — SKF INDUSTRIE SPA (ITA)
SPECIFICATIONS
phaseTHREE
width9.0 INCHES NOMINAL IN
gasketNOT INCLUDED
length9.0 INCHES NOMINAL IN
diameter0.750 INCHES NOMINAL IN
materialSTEEL OVERALL
quantity1
bore_shapeSTRAIGHT
design_typeREFLEX
handle_typeSELF CENTERING
head_weight3.000 POUNDS LBS
holder_typeSTRAIGHT
NSN3110-00-144-8499
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3-B · 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
•
OVERALL OUTSIDE DIAMETER: 42.00 MILLIMETERS NOMINAL MM
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
•
BORE DIAMETER: 15.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TYPICAL APPLICATIONS
  • RAID cache protection during power loss events
  • Write-back cache enablement for storage controllers
  • Enterprise server data integrity assurance
  • Hot-swap battery/capacitor replacement in production
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER42.00 MILLIMETERS NOMINAL MM
INTERNAL FIT-UP DESIGNATIONSTANDARD
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
BORE DIAMETER15.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONABEC NO.1
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 1 CLASS AND 00 GRADE
OVERALL WIDTH13.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
43603Interchangeable
interchangeable cross-reference
interchangeable
3-18152Interchangeable
interchangeable cross-reference
interchangeable
678-1143-010Interchangeable
interchangeable cross-reference
interchangeable
12208Interchangeable
interchangeable cross-reference
interchangeable
631-30Interchangeable
interchangeable cross-reference
interchangeable
8090402Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3-B?
3-B is a CAPACITOR,FIXED,CERAMIC DIELECTR.
What parts can replace 3-B?
There are 32 known substitutes for 3-B: 43603, 3-18152, 678-1143-010 and 29 more. Substitute compatibility should be verified for your specific system.
Is 3-B still available?
3-B 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