PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28623Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-143-7559 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-143-7559 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-143-7559. Primary manufacturer part number: 28623.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Backface Corner Radius: 0.0312 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Style Designator: NORMAL ANGLE
  • Outside Diameter: 3.8750 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • 3 verified cross-references
  • Primary manufacturer: The Timken Corporation
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Cup,tapered Roller Bearing, cataloged under National Stock Number 3110-00-143-7559, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Timken Corporation. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-143-7559
Primary Part Number28623
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Backface Corner Radius0.0312 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Style DesignatorNORMAL ANGLE
Outside Diameter3.8750 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4940-00-181-3206 INTERCHANGEABLE
Press,hydraulic,portable
3030-00-274-658328623 INTERCHANGEABLE
Belt,v
Contitech Usa, Inc Dba Veyance Technologies
1680-00-386-8564 INTERCHANGEABLE
Transmission,mechanical,aircraft
3040-00-689-571928623 INTERCHANGEABLE
Shaft,shouldered
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
5306-01-591-3869 INTERCHANGEABLE
Bolt,assembled Washer
4235-01-642-0310 INTERCHANGEABLE
Spill Containment Unit,hazardous
Cross-Reference Index
Part NumberManufacturer
28623 PRIMARY The Timken Corporation (USA)
28623 PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
VT3463 PRIMARY Cnh Industrial America Llc Dba Cnh America (USA)
Related Parts
4940-00-181-3206INTERCHANGEABLE
PRESS,HYDRAULIC,PORTABLE
3030-00-274-6583INTERCHANGEABLE
BELT,V
28623
1680-00-386-8564INTERCHANGEABLE
TRANSMISSION,MECHANICAL,AIRCRAFT
3040-00-689-5719INTERCHANGEABLE
SHAFT,SHOULDERED
28623
5306-01-591-3869INTERCHANGEABLE
BOLT,ASSEMBLED WASHER
4235-01-642-0310INTERCHANGEABLE
SPILL CONTAINMENT UNIT,HAZARDOUS

Frequently Asked Questions

What is NSN 3110-00-143-7559?

NSN 3110-00-143-7559 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-143-7559?

NSN 3110-00-143-7559 has 3 cross-referenced part numbers: 28623 (The Timken Corporation), 28623 (Federal-Mogul Corp Government Sales Dept), VT3463 (Cnh Industrial America Llc Dba Cnh America).

What NSN replaces 3110-00-143-7559?

There are 6 known substitutes for 3110-00-143-7559: 4940-00-181-3206, 3030-00-274-6583, 1680-00-386-8564 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28623?

Key specifications for 28623: Backface Corner Radius: 0.0312 INCHES NOMINAL IN; Overall Width: 0.7656 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2; Style Designator: NORMAL ANGLE. 6 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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