PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40250Cup,tapered Roller Bearing

Atwood Fence Co Inc · NSN 3110-00-100-0639 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-0639 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-0639. Primary manufacturer part number: 40250.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Style Designator: NORMAL ANGLE
  • Material: STEEL OVERALL
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Outside Diameter: 2.3125 INCHES NOMINAL IN
  • Backface Corner Radius: 0.0400 INCHES NOMINAL IN
  • 10 verified cross-references
  • Primary manufacturer: Atwood Fence Co Inc
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 3110-00-100-0639, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Atwood Fence Co Inc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-100-0639
Primary Part Number40250
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerAtwood Fence Co Inc
StatusCANCELLED
Style DesignatorNORMAL ANGLE
MaterialSTEEL OVERALL
Standard Tolerance DesignationAFBMA CLASS 2
Outside Diameter2.3125 INCHES NOMINAL IN
Backface Corner Radius0.0400 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3110-00-133-672608231 INTERCHANGEABLE
Cup,tapered Roller Bearing
Federal-Mogul Corp Government Sales Dept
5330-00-374-8197300482A4 INTERCHANGEABLE
Seal,plain
Meggitt (north Hollywood), Inc. Dba Meggitt Control Systems Div Meggitt Defense Systems, Inc.
6630-00-431-476040250 INTERCHANGEABLE
Electrode,ph
Beckman Coulter, Inc. Dba Beckman Coulter Inc Div Us Customer Operations
5961-00-431-68291854-0224 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
5961-00-905-2926 INTERCHANGEABLE
Transistor
5961-00-963-498719A115527P1 INTERCHANGEABLE
Transistor
General Electric Co Mobile Communications Business Div
5961-01-017-3605 INTERCHANGEABLE
Transistor
5961-01-180-0137209285-007 INTERCHANGEABLE
Transistor
Tdk-Lambda Americas Inc. Div High Power Division
5325-01-266-930240250 INTERCHANGEABLE
Ring,retaining
L & R Manufacturing Company
5310-01-556-6816 INTERCHANGEABLE
Washer,lock
Cross-Reference Index
Part NumberManufacturer
40250 Atwood Fence Co Inc (USA)
08231SPL The Timken Corporation (USA)
940.85.48.119 Pilatus Aircraft Ltd (CHE)
A-A-59649 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
7966697 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
AA59649-089B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
08231 Australian Timken Pty Ltd (AUS)
08231 The Timken Corporation (USA)
9408548119 Pilatus Aircraft Ltd (CHE)
08231 The Timken Company (FRA)
Related Parts
3110-00-133-6726INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
08231
5330-00-374-8197INTERCHANGEABLE
SEAL,PLAIN
300482A4
6630-00-431-4760INTERCHANGEABLE
ELECTRODE,PH
40250
5961-00-431-6829INTERCHANGEABLE
TRANSISTOR
1854-0224
5961-00-905-2926INTERCHANGEABLE
TRANSISTOR
5961-00-963-4987INTERCHANGEABLE
TRANSISTOR
19A115527P1
5961-01-017-3605INTERCHANGEABLE
TRANSISTOR
5961-01-180-0137INTERCHANGEABLE
TRANSISTOR
209285-007
5325-01-266-9302INTERCHANGEABLE
RING,RETAINING
40250
5310-01-556-6816INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 3110-00-100-0639?

NSN 3110-00-100-0639 is a Cup,tapered Roller Bearing, manufactured by Atwood Fence Co Inc, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-100-0639?

NSN 3110-00-100-0639 has 10 cross-referenced part numbers: 40250 (Atwood Fence Co Inc), 08231SPL (The Timken Corporation), 940.85.48.119 (Pilatus Aircraft Ltd), A-A-59649 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 7966697 (U S Army Tank Automotive Command Amsta-Im-Mm) and 5 more.

What NSN replaces 3110-00-100-0639?

There are 10 known substitutes for 3110-00-100-0639: 3110-00-133-6726, 5330-00-374-8197, 6630-00-431-4760 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40250?

Key specifications for 40250: Overall Width: 0.4219 INCHES NOMINAL IN; Style Designator: NORMAL ANGLE; Material: STEEL OVERALL; Standard Tolerance Designation: AFBMA CLASS 2. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-100-0639 still in active supply?

NSN 3110-00-100-0639 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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