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Technical Data Sheet
PartsTable / COMPONENT / N18 1-4
N18 1-4 ✓ 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,PAPER DIELECTRIC. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, hole_diameter: 0.255 INCHES NOMINAL IN, alignment_type: RIGID, overall_height: 27.00 MILLIMETERS NOMINAL MM, surface_finish: GROUND, outside_diameter: 0.500 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 3110-00-156-1898, 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
N18 1-4
NSN: 3110-00-156-1898
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
hole_diameter0.255 INCHES NOMINAL IN
alignment_typeRIGID
overall_height27.00 MILLIMETERS NOMINAL MM
surface_finishGROUND
outside_diameter0.500 INCHES NOMINAL IN
style_designatorGROOVED RACE SURFACE
material_thickness0.137 INCHES NOMINAL IN
bore_smallest_diameter70.00 MILLIMETERS NOMINAL MM
overall_outside_diameter103.00 MILLIMETERS MAXIMUM MM
standard_tolerance_designationAFBMA STD TOLERANCE FOR THRUST BEARINGS
thrust_directional_capability_designationSINGLE
NSN3110-00-156-1898
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: N18 1-4 · 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
•
BORE SMALLEST DIAMETER: 70.00 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR THRUST BEARINGS
•
OVERALL OUTSIDE DIAMETER: 103.00 MILLIMETERS MAXIMUM MM
•
MATERIAL: STEEL BALL
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
ALIGNMENT TYPE: RIGID
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
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 HEIGHT27.00 MILLIMETERS NOMINAL MM
BORE SMALLEST DIAMETER70.00 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR THRUST BEARINGS
OVERALL OUTSIDE DIAMETER103.00 MILLIMETERS MAXIMUM MM
MATERIALSTEEL BALL
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
ALIGNMENT TYPERIGID
STYLE DESIGNATORGROOVED RACE SURFACE
SURFACE FINISHGROUND
MATERIALSTEEL WASHER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
324D120Interchangeable
interchangeable cross-reference
interchangeable
756-2895Interchangeable
interchangeable cross-reference
interchangeable
20314Interchangeable
interchangeable cross-reference
interchangeable
MIL-G-3787Interchangeable
interchangeable cross-reference
interchangeable
22F203-14Interchangeable
interchangeable cross-reference
interchangeable
N18 1-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N18 1-4?
N18 1-4 is a CAPACITOR,FIXED,PAPER DIELECTRIC.
What parts can replace N18 1-4?
There are 20 known substitutes for N18 1-4: 324D120, 756-2895, 20314 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N18 1-4?
N18 1-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-1898. 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