PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

527-522Bearing,roller,tapered

The Timken Corporation · NSN 3110-00-420-0533 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-420-0533 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-420-0533. Primary manufacturer part number: 527-522.
Features
  • Bearing,roller,tapered — FSC 3110
  • Backface Corner Radius: 0.1300 INCHES NOMINAL IN
  • Standout Width: 0.3125 INCHES NOMINAL IN
  • Cone Corner Radius: 0.1400 INCHES NOMINAL IN
  • Retainer Fabrication Method: PRESSED
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Cup Width: 1.0625 INCHES NOMINAL IN
  • Overall Outside Diameter: 4.0000 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 3110-00-420-0533, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-420-0533
Primary Part Number527-522
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Backface Corner Radius0.1300 INCHES NOMINAL IN
Standout Width0.3125 INCHES NOMINAL IN
Cone Corner Radius0.1400 INCHES NOMINAL IN
Retainer Fabrication MethodPRESSED
Standard Tolerance DesignationAFBMA CLASS 2
Cup Width1.0625 INCHES NOMINAL IN
Overall Outside Diameter4.0000 INCHES NOMINAL IN
Reference Number Differentiating CharacteristicsCERTIFIED FREE FROM MERCURY CONTAMINATION
Style DesignatorSTRAIGHT BORE, NORMAL ANGLE
Bore Diameter1.7500 INCHES NOMINAL IN
Criticality Code JustificationZZZY
Cone Width1.4200 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-100-0300 INTERCHANGEABLE
Cup,tapered Roller Bearing
3110-00-100-4184 INTERCHANGEABLE
Bearing,roller,tapered
5985-00-953-037752752-2 INTERCHANGEABLE
Antenna
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
527-522 The Timken Corporation (USA)
Related Parts
3110-00-100-0300INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3110-00-100-4184INTERCHANGEABLE
BEARING,ROLLER,TAPERED
5985-00-953-0377INTERCHANGEABLE
ANTENNA
52752-2

Frequently Asked Questions

What is NSN 3110-00-420-0533?

NSN 3110-00-420-0533 is a Bearing,roller,tapered, manufactured by The Timken Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-420-0533?

NSN 3110-00-420-0533 has 1 cross-referenced part number: 527-522 (The Timken Corporation).

What NSN replaces 3110-00-420-0533?

There are 3 known substitutes for 3110-00-420-0533: 3110-00-100-0300, 3110-00-100-4184, 5985-00-953-0377. Verify interchangeability with system specifications before substitution.

What are the specifications of 527-522?

Key specifications for 527-522: Backface Corner Radius: 0.1300 INCHES NOMINAL IN; Standout Width: 0.3125 INCHES NOMINAL IN; Cone Corner Radius: 0.1400 INCHES NOMINAL IN; Retainer Fabrication Method: PRESSED. 14 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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