PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L507910Cup,tapered Roller Bearing

The Timken Corporation · NSN 3110-00-191-0494 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-191-0494 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-191-0494. Primary manufacturer part number: L507910.
Features
  • Cup,tapered Roller Bearing — FSC 3110
  • Outside Diameter: 3.4375 INCHES NOMINAL IN
  • Standard Tolerance Designation: AFBMA CLASS 2
  • Backface Corner Radius: 0.0620 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Style Designator: NORMAL ANGLE
  • 4 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 3110-00-191-0494, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-191-0494
Primary Part NumberL507910
Item NameCup,tapered Roller Bearing
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerThe Timken Corporation
StatusACTIVE
Outside Diameter3.4375 INCHES NOMINAL IN
Standard Tolerance DesignationAFBMA CLASS 2
Backface Corner Radius0.0620 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Style DesignatorNORMAL ANGLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6625-00-498-0983630-102 INTERCHANGEABLE
Probe,test
Halsit Holdings Llc Div Halsit Holdings, Llc Dba Abbatron
2990-01-227-25346-30-102 INTERCHANGEABLE
Rotor
Stewart & Stevenson Power Products Llc
6515-01-348-8672G46141 INTERCHANGEABLE
Guide Wire,urethral
Cook Medical Llc
3110-01-459-1201L507910 INTERCHANGEABLE
Cup,tapered Roller Bearing
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5340-01-705-6518630102 INTERCHANGEABLE
Plate,mounting
Ace Electronics Defense Systems, Llc Dba Ace Electronics Defense Systems Llc
Cross-Reference Index
Part NumberManufacturer
L507910 The Timken Company (FRA)
L507910 PRIMARY The Timken Corporation (USA)
A630102 Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA)
630102 Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co (USA)
Related Parts
6625-00-498-0983INTERCHANGEABLE
PROBE,TEST
630-102
2990-01-227-2534INTERCHANGEABLE
ROTOR
6-30-102
6515-01-348-8672INTERCHANGEABLE
GUIDE WIRE,URETHRAL
G46141
3110-01-459-1201INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
L507910
5340-01-705-6518INTERCHANGEABLE
PLATE,MOUNTING
630102

Frequently Asked Questions

What is NSN 3110-00-191-0494?

NSN 3110-00-191-0494 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 3110-00-191-0494?

NSN 3110-00-191-0494 has 4 cross-referenced part numbers: L507910 (The Timken Company), L507910 (The Timken Corporation), A630102 (Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co), 630102 (Towmotor Corp Dallas Plant Sub of Caterpillar Tractor Co).

What NSN replaces 3110-00-191-0494?

There are 5 known substitutes for 3110-00-191-0494: 6625-00-498-0983, 2990-01-227-2534, 6515-01-348-8672 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L507910?

Key specifications for L507910: Outside Diameter: 3.4375 INCHES NOMINAL IN; Standard Tolerance Designation: AFBMA CLASS 2; Overall Width: 0.5625 INCHES NOMINAL IN; Backface Corner Radius: 0.0620 INCHES NOMINAL IN. 7 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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