PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

W203PPFS381ABearing,ball,annular

Timken Co Div the Timken Company · NSN 3110-00-198-2079 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-198-2079 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-198-2079. Primary manufacturer part number: W203PPFS381A.
Features
  • Bearing,ball,annular — FSC 3110
  • Lubrication Material Document and Classification: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
  • Load Direction: RADIAL
  • Material: STEEL OUTER RING
  • Bearing Seal Type: CONTACT
  • Load Direction: RADIAL
  • Lubrication Material Document and Classification: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
  • Retainer Fabrication Method: PRESSED
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-198-2079, 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 27 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 16 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-198-2079
Primary Part NumberW203PPFS381A
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerTimken Co Div the Timken Company
StatusCANCELLED
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Load DirectionRADIAL
MaterialSTEEL OUTER RING
Bearing Seal TypeCONTACT
Load DirectionRADIAL
Lubrication Material Document and ClassificationMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
Retainer Fabrication MethodPRESSED
Seal Quantity2
Seal Quantity2
Surface FinishGROUND
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
Lubrication MaterialGREASE
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialGREASE
Internal Fit-Up DesignationSTANDARD
MaterialRUBBER SYNTHETIC SEAL
MaterialSTEEL RETAINER
MaterialSTEEL INNER RING
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE CARTRIDGE TYPE
MaterialSTEEL INNER RING
MaterialSTEEL BALL
Bearing Seal TypeCONTACT
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
Overall Outside Diameter40.00 MILLIMETERS NOMINAL MM
Bore ShapeSTRAIGHT
Bore Diameter17.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-227-2097203SZZC INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
3110-00-470-5800203SZZC MIL-PRF-81322 INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
2510-00-845-011222017533 INTERCHANGEABLE
Shock Absorber,direct Action
General Motors Llc Dba General Motors Llc
2540-01-182-78195T5126 INTERCHANGEABLE
Handle,pull
Caterpillar Inc Div Caterpillar Defense
6210-01-199-628451840-3 INTERCHANGEABLE
Light,indicator
Ducommun Labarge Technologies, Inc Dba Ducommun Labarge Technologies, Inc
5310-01-478-180050844 INTERCHANGEABLE
Washer Blank
Moog Inc Div Moog Inc., Space and Defense - Salt Lake City
Cross-Reference Index
Part NumberManufacturer
113A617ACP1 General Electric Co Motor Business Group (USA)
MRC203SZZC Skf Usa Inc. (USA)
W203PP Western Sky Industries Inc Dba Electromech Techologies (USA)
W203PP Timken Co Div the Timken Company (USA)
W-203-KLL Reliance Electric Industrial Co Master Div (USA)
203 Enersys Inc. Div Hertner (USA)
W203PPC7FS381A Timken Co Div the Timken Company (USA)
203SZZC Skf Usa Inc. (USA)
W203PP Textron Inc (USA)
3110PL1370151 Jednolity Indeks Materialowy - Uniform Material Index (POL)
113A617ACP1 General Electric Co Outdoor Breaker Business Section (USA)
416321-2-D Reliance Electric (USA)
5084-4 Western Sky Industries Inc Dba Electromech Techologies (USA)
W203PPFS381A PRIMARY Timken Co Div the Timken Company (USA)
518403 Western Sky Industries Inc Dba Electromech Techologies (USA)
13A617ACP1 Rantec Microwave Systems, Inc. Dba Rantec Microwave Systems Inc (USA)
Related Parts
3110-00-227-2097INTERCHANGEABLE
BEARING,BALL,ANNULAR
203SZZC
3110-00-470-5800INTERCHANGEABLE
BEARING,BALL,ANNULAR
203SZZC MIL-PRF-81322
2510-00-845-0112INTERCHANGEABLE
SHOCK ABSORBER,DIRECT ACTION
22017533
2540-01-182-7819INTERCHANGEABLE
HANDLE,PULL
5T5126
6210-01-199-6284INTERCHANGEABLE
LIGHT,INDICATOR
51840-3
5310-01-478-1800INTERCHANGEABLE
WASHER BLANK
50844

Frequently Asked Questions

What is NSN 3110-00-198-2079?

NSN 3110-00-198-2079 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 3110-00-198-2079?

NSN 3110-00-198-2079 has 16 cross-referenced part numbers: 113A617ACP1 (General Electric Co Motor Business Group), MRC203SZZC (Skf Usa Inc.), W203PP (Western Sky Industries Inc Dba Electromech Techologies), W203PP (Timken Co Div the Timken Company), W-203-KLL (Reliance Electric Industrial Co Master Div) and 11 more.

What NSN replaces 3110-00-198-2079?

There are 6 known substitutes for 3110-00-198-2079: 3110-00-227-2097, 3110-00-470-5800, 2510-00-845-0112 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of W203PPFS381A?

Key specifications for W203PPFS381A: Lubrication Material Document and Classification: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE; Load Direction: RADIAL; Material: STEEL OUTER RING; Bearing Seal Type: CONTACT. 30 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-198-2079 still in active supply?

NSN 3110-00-198-2079 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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