PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204WBearing,ball,annular

Timken Co Div the Timken Company · NSN 3110-00-554-5643 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-5643 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-5643. Primary manufacturer part number: 204W.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: RADIAL
  • Style Designator: LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Surface Finish: GROUND
  • Retainer Fabrication Method: PRESSED
  • Overall Outside Diameter: 47.00 MILLIMETERS NOMINAL MM
  • Bore Diameter: 20.00 MILLIMETERS NOMINAL MM
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-554-5643, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 45 commercial cross-references from 33 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-554-5643
Primary Part Number204W
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Load DirectionRADIAL
Style DesignatorLOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Surface FinishGROUND
Retainer Fabrication MethodPRESSED
Overall Outside Diameter47.00 MILLIMETERS NOMINAL MM
Bore Diameter20.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
Internal Fit-Up DesignationSTANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4320-00-231-5697 INTERCHANGEABLE
Pump,rotary
5950-00-268-8925 INTERCHANGEABLE
Transformer,radio Frequency
5998-00-679-090310-1030 INTERCHANGEABLE
Circuit Card Assembly
Marine Electric Systems Inc
5330-00-699-5527101030 INTERCHANGEABLE
Gasket,cover
Parker-Hannifin Corporation Div O-Ring Division
5340-00-953-0699101030 INTERCHANGEABLE
Cap Assembly
Bae Systems Information and Electronic Systems Integration Inc.
5330-00-983-9350700533 INTERCHANGEABLE
Seal Ring,metal
Hamilton Sundstrand Corporation
5130-01-085-5224 INTERCHANGEABLE
Wheel,abrasive
6515-01-162-2985101-030 INTERCHANGEABLE
Electrode,reference
Nova Biomedical Corp
4220-01-219-2810 INTERCHANGEABLE
Impact Mechanism
5985-01-337-501733321K INTERCHANGEABLE
Attenuator,variable
Keysight Technologies Inc
Cross-Reference Index
Part NumberManufacturer
204W Timken Co Div the Timken Company (USA)
543443 Westinghouse Electric Corp (USA)
602455 Chrysler Corp Hamtramck Assembly (USA)
20BL02 Anti-Friction Bearing Mfg Assn Inc the (USA)
204MQ5A7 Skf Usa Inc. (USA)
901204 Air Liquide America Corp Ransome Div (USA)
204MQ5 Skf Usa Inc. (USA)
A10093AR Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
1204X1 General Motors Corp (USA)
1204ML Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
1204 Marine Engine Specialties Div of Mesco Tectonics Inc (USA)
1B4106 Caterpillar Inc Div Caterpillar Defense (USA)
204MT5 Joy Global Underground Mining Llc (USA)
204WFS381A Timken Co Div the Timken Company (USA)
543443 Westinghouse Electric Corp Power Generation-Generator Div (USA)
204M Equitable Bearing Co Inc (USA)
21D7 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
1204 Federal-Mogul Corp Government Sales Dept (USA)
M204CE15X9 Nsk Corp Bearing Div (USA)
P9618530-8 General Electric Company (USA)
Related Parts
4320-00-231-5697INTERCHANGEABLE
PUMP,ROTARY
5950-00-268-8925INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
5998-00-679-0903INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
10-1030
5330-00-699-5527INTERCHANGEABLE
GASKET,COVER
101030
5340-00-953-0699INTERCHANGEABLE
CAP ASSEMBLY
101030
5330-00-983-9350INTERCHANGEABLE
SEAL RING,METAL
700533
5130-01-085-5224INTERCHANGEABLE
WHEEL,ABRASIVE
6515-01-162-2985INTERCHANGEABLE
ELECTRODE,REFERENCE
101-030
4220-01-219-2810INTERCHANGEABLE
IMPACT MECHANISM
5985-01-337-5017INTERCHANGEABLE
ATTENUATOR,VARIABLE
33321K
6550-01-370-8741INTERCHANGEABLE
CONTROL SET,GLUCOSE
5365-01-387-1864INTERCHANGEABLE
SHIM
101030

Frequently Asked Questions

What is NSN 3110-00-554-5643?

NSN 3110-00-554-5643 is a Bearing,ball,annular, manufactured by Timken Co Div the Timken Company, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-554-5643?

NSN 3110-00-554-5643 has 45 cross-referenced part numbers: 204W (Timken Co Div the Timken Company), 543443 (Westinghouse Electric Corp), 602455 (Chrysler Corp Hamtramck Assembly), 20BL02 (Anti-Friction Bearing Mfg Assn Inc the), 204MQ5A7 (Skf Usa Inc.) and 40 more.

What NSN replaces 3110-00-554-5643?

There are 12 known substitutes for 3110-00-554-5643: 4320-00-231-5697, 5950-00-268-8925, 5998-00-679-0903 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204W?

Key specifications for 204W: Load Direction: RADIAL; Style Designator: LOADING GROOVE, NON-SEPARABLE; Material: STEEL OVERALL; Surface Finish: GROUND. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-554-5643 still in active supply?

NSN 3110-00-554-5643 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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