PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

525-522Bearing,roller,tapered

The Timken Corporation · NSN 3110-00-100-4182 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-4182 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-4182. Primary manufacturer part number: 525-522.
Features
  • Bearing,roller,tapered — FSC 3110
  • Material: STEEL OVERALL
  • Cup Width: 1.0625 INCHES NOMINAL IN
  • Overall Outside Diameter: 4.0000 INCHES NOMINAL IN
  • Cone Corner Radius: 0.1400 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Style Designator: STRAIGHT BORE, NORMAL ANGLE
  • Cone Width: 1.4200 INCHES NOMINAL IN
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 3110-00-100-4182, 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 10 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: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-4182
Primary Part Number525-522
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
MaterialSTEEL OVERALL
Cup Width1.0625 INCHES NOMINAL IN
Overall Outside Diameter4.0000 INCHES NOMINAL IN
Cone Corner Radius0.1400 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Style DesignatorSTRAIGHT BORE, NORMAL ANGLE
Cone Width1.4200 INCHES NOMINAL IN
Standout Width0.3120 INCHES NOMINAL IN
Backface Corner Radius0.1300 INCHES NOMINAL IN
Bore Diameter1.5000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5962-01-371-317652552-2 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Div Rmd Strategic
Cross-Reference Index
Part NumberManufacturer
525-522 PRIMARY The Timken Corporation (USA)
159A415H03 Westinghouse Electric Corp General Control Div (USA)
Related Parts
5962-01-371-3176INTERCHANGEABLE
MICROCIRCUIT,MEMORY
52552-2

Frequently Asked Questions

What is NSN 3110-00-100-4182?

NSN 3110-00-100-4182 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-100-4182?

NSN 3110-00-100-4182 has 2 cross-referenced part numbers: 525-522 (The Timken Corporation), 159A415H03 (Westinghouse Electric Corp General Control Div).

What NSN replaces 3110-00-100-4182?

There is 1 known substitute for 3110-00-100-4182: 5962-01-371-3176. Verify interchangeability with system specifications before substitution.

What are the specifications of 525-522?

Key specifications for 525-522: Material: STEEL OVERALL; Cup Width: 1.0625 INCHES NOMINAL IN; Overall Outside Diameter: 4.0000 INCHES NOMINAL IN; Cone Corner Radius: 0.1400 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-4182 still in active supply?

NSN 3110-00-100-4182 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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