PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

29521Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-101-1790 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-101-1790 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-101-1790. Primary manufacturer part number: 29521.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Style Designator: NORMAL ANGLE
  • Backface Corner Radius: 0.0469 INCHES NOMINAL IN
  • Outside Diameter: 4.3307 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Material: STEEL OVERALL
  • 15 verified cross-references
  • Primary manufacturer: The Timken Corporation
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 3110-00-101-1790, 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 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-101-1790
Primary Part Number29521
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Style DesignatorNORMAL ANGLE
Backface Corner Radius0.0469 INCHES NOMINAL IN
Outside Diameter4.3307 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-360-849727233C INTERCHANGEABLE
Gasket
Brinkley Technology Group Llc Dba Hercules Manufacturing
5920-01-513-4488212594 INTERCHANGEABLE
Fuse,cartridge
Doall Baltimore Company
Cross-Reference Index
Part NumberManufacturer
29521 Ntn Bearing Corporation of America (USA)
212594 Allis-Chalmers Corp (USA)
0212594 Itt Goulds Pumps, Inc. (USA)
0212594 Allis-Chalmers Corp (USA)
911586 Sasco Inc Canadian Div
2674D5 Diamond Reo Truck Co (USA)
FF-B-187/1 TYPE ABMA P/N 29521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
FF-B-171 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
K29521 Skf France (FRA)
212594 Itt Goulds Pumps, Inc. (USA)
711X29521X1000 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
29521 Kaitlin Corp (USA)
29521 The Timken Company (FRA)
29521 Meritor Heavy Vehicle Systems, Llc (USA)
29521 PRIMARY The Timken Corporation (USA)
Related Parts
5330-00-360-8497INTERCHANGEABLE
GASKET
27233C
5920-01-513-4488INTERCHANGEABLE
FUSE,CARTRIDGE
212594

Frequently Asked Questions

What is NSN 3110-00-101-1790?

NSN 3110-00-101-1790 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 3110-00-101-1790?

NSN 3110-00-101-1790 has 15 cross-referenced part numbers: 29521 (Ntn Bearing Corporation of America), 212594 (Allis-Chalmers Corp), 0212594 (Itt Goulds Pumps, Inc.), 0212594 (Allis-Chalmers Corp), 911586 (Sasco Inc Canadian Div) and 10 more.

What NSN replaces 3110-00-101-1790?

There are 2 known substitutes for 3110-00-101-1790: 5330-00-360-8497, 5920-01-513-4488. Verify interchangeability with system specifications before substitution.

What are the specifications of 29521?

Key specifications for 29521: Style Designator: NORMAL ANGLE; Overall Width: 0.7500 INCHES NOMINAL IN; Backface Corner Radius: 0.0469 INCHES NOMINAL IN; Outside Diameter: 4.3307 INCHES NOMINAL IN. 6 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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