PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N1803SBearing,ball,thrust

Timken Co Div the Timken Company · NSN 3110-00-554-5724 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-5724 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-5724. Primary manufacturer part number: N1803S.
Features
  • Bearing,ball,thrust — FSC 3110
  • Bore Smallest Diameter: 0.5902 INCHES NOMINAL IN
  • Thrust Directional Capability Designation: SINGLE
  • Retainer Fabrication Method: PRESSED
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS
  • Surface Finish: GROUND
  • Alignment Type: RIGID
  • Overall Outside Diameter: 1.3780 INCHES NOMINAL IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,thrust, cataloged under National Stock Number 3110-00-554-5724, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Timken Co Div the Timken Company. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-554-5724
Primary Part NumberN1803S
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusACTIVE
Bore Smallest Diameter0.5902 INCHES NOMINAL IN
Thrust Directional Capability DesignationSINGLE
Retainer Fabrication MethodPRESSED
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR THRUST BEARINGS
Surface FinishGROUND
Alignment TypeRIGID
Overall Outside Diameter1.3780 INCHES NOMINAL IN
Style DesignatorGROOVED RACE SURFACE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-156-1853 INTERCHANGEABLE
Bearing,ball,thrust
Cross-Reference Index
Part NumberManufacturer
N1803S PRIMARY Timken Co Div the Timken Company (USA)
1103F Skf Usa Inc. (USA)
Related Parts
3110-00-156-1853INTERCHANGEABLE
BEARING,BALL,THRUST

Frequently Asked Questions

What is NSN 3110-00-554-5724?

NSN 3110-00-554-5724 is a Bearing,ball,thrust, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-554-5724?

NSN 3110-00-554-5724 has 2 cross-referenced part numbers: N1803S (Timken Co Div the Timken Company), 1103F (Skf Usa Inc.).

What NSN replaces 3110-00-554-5724?

There is 1 known substitute for 3110-00-554-5724: 3110-00-156-1853. Verify interchangeability with system specifications before substitution.

What are the specifications of N1803S?

Key specifications for N1803S: Bore Smallest Diameter: 0.5902 INCHES NOMINAL IN; Thrust Directional Capability Designation: SINGLE; Retainer Fabrication Method: PRESSED; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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