PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45285-45221Bearing,roller,tapered

The Timken Corporation · NSN 3110-00-275-0002 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-275-0002 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-275-0002. Primary manufacturer part number: 45285-45221.
Features
  • Bearing,roller,tapered — FSC 3110
  • Standout Width: 0.2500 INCHES NOMINAL IN
  • Overall Outside Diameter: 4.1250 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 3
  • Cup Width: 0.9375 INCHES NOMINAL IN
  • Backface Corner Radius: 0.0310 INCHES NOMINAL IN
  • Style Designator: STRAIGHT BORE, DOUBLE CUP, SINGLE CONES
  • Bore Diameter: 2.0000 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 3110-00-275-0002, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-275-0002
Primary Part Number45285-45221
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Standout Width0.2500 INCHES NOMINAL IN
Overall Outside Diameter4.1250 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 3
Cup Width0.9375 INCHES NOMINAL IN
Backface Corner Radius0.0310 INCHES NOMINAL IN
Style DesignatorSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES
Bore Diameter2.0000 INCHES NOMINAL IN
Cone Corner Radius0.0930 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6610-00-398-96732133-2 INTERCHANGEABLE
Rocking Shaft Assembly
Aerosonic Llc
5310-00-595-757221332 INTERCHANGEABLE
Washer,recessed
Prestolite Electric Inc
5360-00-802-9266N21332 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
5945-00-866-27687012AF INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
2910-00-903-8326 INTERCHANGEABLE
Carburetor,float
5910-01-053-274840D505G006BB4 INTERCHANGEABLE
Capacitor,fixed,electrolytic
B. Microfarads, Inc. Dba Barker Microfarads
5895-01-100-463821332 INTERCHANGEABLE
Cover,electronic Communication E
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
3040-01-181-672621332 INTERCHANGEABLE
Gearshaft,spur
Eaton Corporation Div Eaton Fluid Power
6030-01-364-383921332 INTERCHANGEABLE
Light Signal Receiver-Transmitte
Anritsu Instruments Company Div Mbu
5998-01-478-910721332 INTERCHANGEABLE
Circuit Card Assembly
Giga-Tronics Incorporated Dba Giga-Tronics
Cross-Reference Index
Part NumberManufacturer
21332 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
45285-45221 PRIMARY The Timken Corporation (USA)
45285AND45221 The Timken Corporation (USA)
Related Parts
6610-00-398-9673INTERCHANGEABLE
ROCKING SHAFT ASSEMBLY
2133-2
5310-00-595-7572INTERCHANGEABLE
WASHER,RECESSED
21332
5360-00-802-9266INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
N21332
5945-00-866-2768INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
7012AF
2910-00-903-8326INTERCHANGEABLE
CARBURETOR,FLOAT
5910-01-053-2748INTERCHANGEABLE
CAPACITOR,FIXED,ELECTROLYTIC
40D505G006BB4
5895-01-100-4638INTERCHANGEABLE
COVER,ELECTRONIC COMMUNICATION E
21332
3040-01-181-6726INTERCHANGEABLE
GEARSHAFT,SPUR
21332
6030-01-364-3839INTERCHANGEABLE
LIGHT SIGNAL RECEIVER-TRANSMITTE
21332
5998-01-478-9107INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
21332
6525-01-592-7722INTERCHANGEABLE
SHIELD SET,GONADAL,X-RAY PROTECT
5945-01-617-6536INTERCHANGEABLE
RELAY,THERMAL
21332

Frequently Asked Questions

What is NSN 3110-00-275-0002?

NSN 3110-00-275-0002 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 3110-00-275-0002?

NSN 3110-00-275-0002 has 3 cross-referenced part numbers: 21332 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.), 45285-45221 (The Timken Corporation), 45285AND45221 (The Timken Corporation).

What NSN replaces 3110-00-275-0002?

There are 12 known substitutes for 3110-00-275-0002: 6610-00-398-9673, 5310-00-595-7572, 5360-00-802-9266 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45285-45221?

Key specifications for 45285-45221: Standout Width: 0.2500 INCHES NOMINAL IN; Overall Outside Diameter: 4.1250 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 3; Cup Width: 0.9375 INCHES NOMINAL IN. 10 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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