PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

672BCup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-142-4394 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-142-4394 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-142-4394. Primary manufacturer part number: 672B.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Backface Corner Radius: 0.1250 INCHES NOMINAL IN
  • Flange Width: 0.2813 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: NORMAL ANGLE, FLANGED
  • Outer Ring Outside Diameter: 6.6250 INCHES NOMINAL IN
  • Flange Outside Diameter: 6.9070 INCHES NOMINAL IN
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 3110-00-142-4394, 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 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-142-4394
Primary Part Number672B
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Standard Tolerance DesignationAFBMA CLASS 2
Backface Corner Radius0.1250 INCHES NOMINAL IN
Flange Width0.2813 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorNORMAL ANGLE, FLANGED
Outer Ring Outside Diameter6.6250 INCHES NOMINAL IN
Flange Outside Diameter6.9070 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5970-00-486-5189605338-1 INTERCHANGEABLE
Insulator,bushing
Raytheon Company Dba Raytheon
4730-00-786-01698332804 INTERCHANGEABLE
Tee,brake Chamber
Kenworth Truck Co a Div of Paccar Inc
5905-01-096-6128 INTERCHANGEABLE
Resistor,fixed,wire Wound
4730-01-452-057102-0072-4-012 INTERCHANGEABLE
Coupling Body,tube
Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
4730-01-577-20222107-6-8 INTERCHANGEABLE
Elbow,pipe
Parker-Hannifin Corp Div Fluid System Connector Division
Cross-Reference Index
Part NumberManufacturer
210768 Allis-Chalmers Corp (USA)
FF-B-187 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
672B PRIMARY The Timken Corporation (USA)
0210768 Allis-Chalmers Corp (USA)
2B9175 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
0605338-3 New Holland Construction (USA)
0605338 New Holland Construction (USA)
0210768 Itt Goulds Pumps, Inc. (USA)
605338 New Holland Construction (USA)
BT672B PRIMARY Federal-Mogul Corp Government Sales Dept (USA)
Related Parts
5970-00-486-5189INTERCHANGEABLE
INSULATOR,BUSHING
605338-1
4730-00-786-0169INTERCHANGEABLE
TEE,BRAKE CHAMBER
8332804
5905-01-096-6128INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
4730-01-452-0571INTERCHANGEABLE
COUPLING BODY,TUBE
02-0072-4-012
4730-01-577-2022INTERCHANGEABLE
ELBOW,PIPE
2107-6-8

Frequently Asked Questions

What is NSN 3110-00-142-4394?

NSN 3110-00-142-4394 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 3110-00-142-4394?

NSN 3110-00-142-4394 has 10 cross-referenced part numbers: 210768 (Allis-Chalmers Corp), FF-B-187 (Federal Specifications Promulgated by General Services Administration Washington DC), 672B (The Timken Corporation), 0210768 (Allis-Chalmers Corp), 2B9175 (Caterpillar Inc Div Caterpillar Defense) and 5 more.

What NSN replaces 3110-00-142-4394?

There are 5 known substitutes for 3110-00-142-4394: 5970-00-486-5189, 4730-00-786-0169, 5905-01-096-6128 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 672B?

Key specifications for 672B: Standard Tolerance Designation: AFBMA CLASS 2; Backface Corner Radius: 0.1250 INCHES NOMINAL IN; Flange Width: 0.2813 INCHES NOMINAL IN; Overall Width: 1.1875 INCHES NOMINAL IN. 8 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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