PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

854BCup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-142-4400 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-142-4400 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-142-4400. Primary manufacturer part number: 854B.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Outer Ring Outside Diameter: 7.5000 INCHES NOMINAL IN
  • Flange Width: 0.3750 INCHES NOMINAL IN
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Flange Outside Diameter: 7.8750 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Style Designator: NORMAL ANGLE, FLANGED
  • Material: STEEL OVERALL
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 3110-00-142-4400, 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 7 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-142-4400
Primary Part Number854B
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Outer Ring Outside Diameter7.5000 INCHES NOMINAL IN
Flange Width0.3750 INCHES NOMINAL IN
Backface Corner Radius0.1250 INCHES NOMINAL IN
Flange Outside Diameter7.8750 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Style DesignatorNORMAL ANGLE, FLANGED
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2930-00-176-423136W INTERCHANGEABLE
Pump,cooling System,engine
Federal-Mogul Corp Government Sales Dept
6145-01-164-4551 INTERCHANGEABLE
Wire,electrical
Cross-Reference Index
Part NumberManufacturer
854B PRIMARY The Timken Corporation (USA)
F2325 American Standard Inc Westinghouse Air Brake Co Div (USA)
Related Parts
2930-00-176-4231INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
36W
6145-01-164-4551INTERCHANGEABLE
WIRE,ELECTRICAL

Frequently Asked Questions

What is NSN 3110-00-142-4400?

NSN 3110-00-142-4400 is a Cup,tapered Roller Bearing, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-142-4400?

NSN 3110-00-142-4400 has 2 cross-referenced part numbers: 854B (The Timken Corporation), F2325 (American Standard Inc Westinghouse Air Brake Co Div).

What NSN replaces 3110-00-142-4400?

There are 2 known substitutes for 3110-00-142-4400: 2930-00-176-4231, 6145-01-164-4551. Verify interchangeability with system specifications before substitution.

What are the specifications of 854B?

Key specifications for 854B: Outer Ring Outside Diameter: 7.5000 INCHES NOMINAL IN; Flange Width: 0.3750 INCHES NOMINAL IN; Overall Width: 1.7500 INCHES NOMINAL IN; Backface Corner Radius: 0.1250 INCHES NOMINAL IN. 8 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-142-4400 still in active supply?

NSN 3110-00-142-4400 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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