PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A02DS231-1Bearing,roller,tapered

The Boeing Company · NSN 3110-01-202-2187 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-202-2187 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-202-2187. Primary manufacturer part number: A02DS231-1.
Features
  • Bearing,roller,tapered — FSC 3110
  • Style Designator: STRAIGHT BORE, NORMAL ANGLE
  • Cone Width: 0.7067 INCHES MINIMUM AND 0.7087 INCHES MAXIMUM IN
  • Overall Outside Diameter: 4.1339 INCHES NOMINAL IN
  • Backface Corner Radius: 0.0300 INCHES NOMINAL IN
  • Cup Width: 0.5670 INCHES MINIMUM AND 0.5709 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • 2 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,roller,tapered, cataloged under National Stock Number 3110-01-202-2187, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is The Boeing Company. Government technical data includes 6 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
NSN3110-01-202-2187
Primary Part NumberA02DS231-1
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Boeing Company
StatusACTIVE
Style DesignatorSTRAIGHT BORE, NORMAL ANGLE
Cone Width0.7067 INCHES MINIMUM AND 0.7087 INCHES MAXIMUM IN
Overall Outside Diameter4.1339 INCHES NOMINAL IN
Backface Corner Radius0.0300 INCHES NOMINAL IN
Cup Width0.5670 INCHES MINIMUM AND 0.5709 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
2910-00-898-492615225 INTERCHANGEABLE
Filter Element,fluid
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
Cross-Reference Index
Part NumberManufacturer
A43870 The Timken Corporation (USA)
A02DS231-1 PRIMARY The Boeing Company (USA)
Related Parts
2910-00-898-4926INTERCHANGEABLE
FILTER ELEMENT,FLUID
15225

Frequently Asked Questions

What is NSN 3110-01-202-2187?

NSN 3110-01-202-2187 is a Bearing,roller,tapered, manufactured by The Boeing Company, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-202-2187?

NSN 3110-01-202-2187 has 2 cross-referenced part numbers: A43870 (The Timken Corporation), A02DS231-1 (The Boeing Company).

What NSN replaces 3110-01-202-2187?

There is 1 known substitute for 3110-01-202-2187: 2910-00-898-4926. Verify interchangeability with system specifications before substitution.

What are the specifications of A02DS231-1?

Key specifications for A02DS231-1: Overall Width: 0.7677 INCHES MINIMUM AND 0.7717 INCHES MAXIMUM IN; Style Designator: STRAIGHT BORE, NORMAL ANGLE; Cone Width: 0.7067 INCHES MINIMUM AND 0.7087 INCHES MAXIMUM IN; Overall Outside Diameter: 4.1339 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com