PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

28521Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-100-0565 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0565 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0565. Primary manufacturer part number: 28521.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Outside Diameter: 3.6250 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Backface Corner Radius: 0.0312 INCHES NOMINAL IN
  • Style Designator: NORMAL ANGLE
  • 33 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 3110-00-100-0565, 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 33 commercial cross-references from 26 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-0565
Primary Part Number28521
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusCANCELLED
Standard Tolerance DesignationAFBMA CLASS 2
Outside Diameter3.6250 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Backface Corner Radius0.0312 INCHES NOMINAL IN
Style DesignatorNORMAL ANGLE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3120-00-128-2079069013 INTERCHANGEABLE
Bearing,sleeve
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5821-00-238-2704 INTERCHANGEABLE
Receiver Subassembly,radio
5360-00-242-0100285-21 INTERCHANGEABLE
Spring,helical,compression
Atb Laurence Scott Ltd
5935-00-481-092255023-1 INTERCHANGEABLE
Connector Body,receptacle,electr
L3harris Mas Inc Div L3harris Mas Inc.
5905-00-482-7807 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
5950-00-820-3872 INTERCHANGEABLE
Transformer,power
5998-00-985-0983 INTERCHANGEABLE
Circuit Card Assembly
4320-01-067-276738233-091 14000 INTERCHANGEABLE
Housing,liquid Pump
The Gorman-Rupp Company Div Gorman-Rupp
5305-01-166-590830147 INTERCHANGEABLE
Screw,cap,hexagon Head
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4820-01-219-4908 INTERCHANGEABLE
Valve,globe
Cross-Reference Index
Part NumberManufacturer
28521 The Timken Company (FRA)
28521 Dana Off Highway Products, Llc (USA)
706872 Army Weapons Command Attn Amswe-Ree-S (USA)
30147 Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling (USA)
510-28521-6 Manitowoc Engineering Co Division of the Manitowoc Co Inc (USA)
ST964 Navistar International Corporation Dba Navistar (USA)
550231 Dana Corp Spicer Transmission Div (USA)
28521 Australian Timken Pty Ltd (AUS)
BT28521 Federal-Mogul Corp Government Sales Dept (USA)
691241 Chrysler Corp Hamtramck Assembly (USA)
404913-001 Drs Naval Power Systems Inc Dba Drs Power & Control Technologies Inc (USA)
FFB187/01-TYPE ABMA 28521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
28521 Federal-Mogul Corp Government Sales Dept (USA)
856250 Clark Equipment Co (USA)
461267 White Motor Corp (USA)
114979H Navistar International Corporation Dba Navistar (USA)
K28521 Skf France (FRA)
30147 Hyster-Yale Group, Inc. (USA)
28521 Clark Equipment Co (USA)
510-28521-6 Dana Corp Spicer Transmission Div (USA)
Related Parts
3120-00-128-2079INTERCHANGEABLE
BEARING,SLEEVE
069013
5821-00-238-2704INTERCHANGEABLE
RECEIVER SUBASSEMBLY,RADIO
5360-00-242-0100INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
285-21
5935-00-481-0922INTERCHANGEABLE
CONNECTOR BODY,RECEPTACLE,ELECTR
55023-1
5905-00-482-7807INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
5950-00-820-3872INTERCHANGEABLE
TRANSFORMER,POWER
5998-00-985-0983INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4320-01-067-2767INTERCHANGEABLE
HOUSING,LIQUID PUMP
38233-091 14000
5305-01-166-5908INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
30147
4820-01-219-4908INTERCHANGEABLE
VALVE,GLOBE
6210-01-234-0167INTERCHANGEABLE
LENS,LIGHT
5330-01-288-8382INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 3110-00-100-0565?

NSN 3110-00-100-0565 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 3110-00-100-0565?

NSN 3110-00-100-0565 has 33 cross-referenced part numbers: 28521 (The Timken Company), 28521 (Dana Off Highway Products, Llc), 706872 (Army Weapons Command Attn Amswe-Ree-S), 30147 (Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling), 510-28521-6 (Manitowoc Engineering Co Division of the Manitowoc Co Inc) and 28 more.

What NSN replaces 3110-00-100-0565?

There are 12 known substitutes for 3110-00-100-0565: 3120-00-128-2079, 5821-00-238-2704, 5360-00-242-0100 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 28521?

Key specifications for 28521: Overall Width: 0.7813 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2; Outside Diameter: 3.6250 INCHES NOMINAL IN; Material: STEEL OVERALL. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-0565 still in active supply?

NSN 3110-00-100-0565 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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