PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12313046Bearing,roller,tapered

The Timken Corporation · NSN 3110-00-100-5305 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-100-5305 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-100-5305. Primary manufacturer part number: 12313046.
Features
  • Bearing,roller,tapered — FSC 3110
  • Standout Width: 0.1875 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Cup Width: 0.7500 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Cone Width: 1.0000 INCHES NOMINAL IN
  • Bore Diameter: 1.6875 INCHES NOMINAL IN
  • Overall Outside Diameter: 3.2650 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 3110-00-100-5305, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 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
NSN3110-00-100-5305
Primary Part Number12313046
Item NameBearing,roller,tapered
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Standout Width0.1875 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Cup Width0.7500 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Cone Width1.0000 INCHES NOMINAL IN
Bore Diameter1.6875 INCHES NOMINAL IN
Overall Outside Diameter3.2650 INCHES NOMINAL IN
Style DesignatorSTRAIGHT BORE, NORMAL ANGLE
Cone Corner Radius0.0900 INCHES NOMINAL IN
Backface Corner Radius0.0310 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3110-00-100-5303 INTERCHANGEABLE
Bearing,roller,tapered
5340-01-151-9626154940 INTERCHANGEABLE
Retainer
Dresser Industries Inc Waukesha Engine Div
Cross-Reference Index
Part NumberManufacturer
12313046 PRIMARY The Timken Corporation (USA)
154940 Cummins Inc. (USA)
25520-25578 Skf Usa Inc. (USA)
25578-25520 The Timken Corporation (USA)
12313046 U S Army Tank Automotive Command Amsta-Im-Mm (USA)
25580-25520 The Timken Corporation (USA)
25520-25578 The Timken Corporation (USA)
Related Parts
3110-00-100-5303INTERCHANGEABLE
BEARING,ROLLER,TAPERED
5340-01-151-9626INTERCHANGEABLE
RETAINER
154940

Frequently Asked Questions

What is NSN 3110-00-100-5305?

NSN 3110-00-100-5305 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 3110-00-100-5305?

NSN 3110-00-100-5305 has 7 cross-referenced part numbers: 12313046 (The Timken Corporation), 154940 (Cummins Inc.), 25520-25578 (Skf Usa Inc.), 25578-25520 (The Timken Corporation), 12313046 (U S Army Tank Automotive Command Amsta-Im-Mm) and 2 more.

What NSN replaces 3110-00-100-5305?

There are 2 known substitutes for 3110-00-100-5305: 3110-00-100-5303, 5340-01-151-9626. Verify interchangeability with system specifications before substitution.

What are the specifications of 12313046?

Key specifications for 12313046: Standout Width: 0.1875 INCHES NOMINAL IN; Material: STEEL OVERALL; Cup Width: 0.7500 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2. 11 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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