PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3821Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-100-0379 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0379 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0379. Primary manufacturer part number: 3821.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Backface Corner Radius: 0.0469 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Style Designator: NORMAL ANGLE
  • Material: STEEL OVERALL
  • Outside Diameter: 3.3750 INCHES NOMINAL IN
  • 10 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 3110-00-100-0379, 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 10 commercial cross-references from 9 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
NSN3110-00-100-0379
Primary Part Number3821
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Backface Corner Radius0.0469 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Style DesignatorNORMAL ANGLE
MaterialSTEEL OVERALL
Outside Diameter3.3750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
9905-00-037-313214204 INTERCHANGEABLE
Plate,instruction
Triumph Engine Control Systems Llc
3110-00-100-0302 INTERCHANGEABLE
Cup,tapered Roller Bearing
5307-00-163-455438-21 INTERCHANGEABLE
Stud,plain
Textron Lycoming Inc Williamsport Plant
5940-00-168-3381 INTERCHANGEABLE
Terminal Board
5330-00-362-2115F400A336 INTERCHANGEABLE
Gasket
Sealcraft Corporation
2420-00-405-00393821 INTERCHANGEABLE
Plate,floor
R and J Metal Fabricators Inc
6210-00-505-1171382-1 INTERCHANGEABLE
Control,electric Light
Astronics Advanced Electronic Systems Corp. Dba Astronics Advanced Electronic Systems
4810-00-555-73566889806 INTERCHANGEABLE
Valve,solenoid
Rolls-Royce Corporation
5940-00-583-7038014-1005-00-0-479 INTERCHANGEABLE
Terminal,stud
Itt Cannon Rf Products
5325-00-634-78862100-12 INTERCHANGEABLE
Insert,screw Thread
Safran Electronics & Defense, Avionics Usa, Llc Dba Use CAGE Code 879b2 for Cataloging
Cross-Reference Index
Part NumberManufacturer
210012 Allis-Chalmers Corp (USA)
900735 Sasco Inc Canadian Div
3821 PRIMARY The Timken Corporation (USA)
K3821 Skf France (FRA)
210012 Itt Goulds Pumps, Inc. (USA)
0210012-1 Agco Corp Parts Opn (USA)
BT3821 Federal-Mogul Corp Government Sales Dept (USA)
3821 The Timken Company (FRA)
FF-B-187 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
3821 Federal-Mogul Corp Government Sales Dept (USA)
Related Parts
9905-00-037-3132INTERCHANGEABLE
PLATE,INSTRUCTION
14204
3110-00-100-0302INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
5307-00-163-4554INTERCHANGEABLE
STUD,PLAIN
38-21
5940-00-168-3381INTERCHANGEABLE
TERMINAL BOARD
5330-00-362-2115INTERCHANGEABLE
GASKET
F400A336
2420-00-405-0039INTERCHANGEABLE
PLATE,FLOOR
3821
6210-00-505-1171INTERCHANGEABLE
CONTROL,ELECTRIC LIGHT
382-1
4810-00-555-7356INTERCHANGEABLE
VALVE,SOLENOID
6889806
5940-00-583-7038INTERCHANGEABLE
TERMINAL,STUD
014-1005-00-0-479
5325-00-634-7886INTERCHANGEABLE
INSERT,SCREW THREAD
2100-12
4820-00-728-0664INTERCHANGEABLE
VALVE,GLOBE
382-1-PL0891
5961-00-729-1059INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 3110-00-100-0379?

NSN 3110-00-100-0379 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 3110-00-100-0379?

NSN 3110-00-100-0379 has 10 cross-referenced part numbers: 210012 (Allis-Chalmers Corp), 900735 (Sasco Inc Canadian Div), 3821 (The Timken Corporation), K3821 (Skf France), 210012 (Itt Goulds Pumps, Inc.) and 5 more.

What NSN replaces 3110-00-100-0379?

There are 12 known substitutes for 3110-00-100-0379: 9905-00-037-3132, 3110-00-100-0302, 5307-00-163-4554 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3821?

Key specifications for 3821: Backface Corner Radius: 0.0469 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2; Overall Width: 0.9375 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE. 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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