PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS12Bearing,ball,annular

Fag Bearings Corporation · NSN 3110-00-155-8905 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-8905 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-8905. Primary manufacturer part number: LS12.
Features
  • Bearing,ball,annular — FSC 3110
  • Internal Fit-Up Designation: STANDARD
  • Nondefinitive Spec/std Data: 115 TYPE AND 00 GRADE
  • Standard Tolerance Designation: ABEC NO.1
  • Material: STEEL OVERALL
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 115 TYPE AND 00 GRADE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-155-8905, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-155-8905
Primary Part NumberLS12
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusCANCELLED
Internal Fit-Up DesignationSTANDARD
Nondefinitive Spec/std Data115 TYPE AND 00 GRADE
Standard Tolerance DesignationABEC NO.1
MaterialSTEEL OVERALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data115 TYPE AND 00 GRADE
Departure From Cited DesignatorAS MODIFIED BY OVERALL OUTSIDE DIAMETER,AS MODIFIED BY OVERALL WIDTH
Load DirectionRADIAL
Standard Tolerance DesignationABEC NO.1
Bore ShapeSTRAIGHT
Departure From Cited DesignatorAS MODIFIED BY OVERALL OUTSIDE DIAMETER,AS MODIFIED BY OVERALL WIDTH
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Overall Outside Diameter2.7500 INCHES NOMINAL IN
Bore ShapeSTRAIGHT
Surface FinishGROUND
Bore Diameter1.2500 INCHES NOMINAL IN
Load DirectionRADIAL
Retainer Fabrication MethodPRESSED
Internal Fit-Up DesignationSTANDARD
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-248-1811RLS10 INTERCHANGEABLE
Bearing,ball,annular
Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division
3120-00-661-7196LS12 INTERCHANGEABLE
Bearing,plain,self-Aligning
Roller Bearing Company of America, Inc.
5965-00-809-3839 INTERCHANGEABLE
Loudspeaker,permanent Magnet
1730-01-068-8016LS-12 INTERCHANGEABLE
Fixture,parachute Packing
The Boeing Company
3110-01-191-5638 INTERCHANGEABLE
Bearing,wheel
4720-01-408-6948LS12 INTERCHANGEABLE
Hose,metallic
Titeflex Canada Ltd
Cross-Reference Index
Part NumberManufacturer
LS12 PRIMARY Fag Bearings Corporation (USA)
FFB171 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
RLS10 Applied Industrial Technologies (NZL)
LS12TF PRIMARY Fag Bearings Corporation (USA)
LS12 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
P9618578-1 PRIMARY General Electric Company (USA)
RLS10 PRIMARY Skf Usa Inc. (USA)
231638-3 PRIMARY Naval Sea Systems Command (USA)
231638-3 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
LS12 Equitable Bearing Co Inc (USA)
RLS10 PRIMARY Skf (uk) Ltd (GBR)
Related Parts
3110-00-248-1811INTERCHANGEABLE
BEARING,BALL,ANNULAR
RLS10
3120-00-661-7196INTERCHANGEABLE
BEARING,PLAIN,SELF-ALIGNING
LS12
5965-00-809-3839INTERCHANGEABLE
LOUDSPEAKER,PERMANENT MAGNET
1730-01-068-8016INTERCHANGEABLE
FIXTURE,PARACHUTE PACKING
LS-12
3110-01-191-5638INTERCHANGEABLE
BEARING,WHEEL
4720-01-408-6948INTERCHANGEABLE
HOSE,METALLIC
LS12

Frequently Asked Questions

What is NSN 3110-00-155-8905?

NSN 3110-00-155-8905 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-155-8905?

NSN 3110-00-155-8905 has 11 cross-referenced part numbers: LS12 (Fag Bearings Corporation), FFB171 (Federal Specifications Promulgated by General Services Administration Washington DC), RLS10 (Applied Industrial Technologies), LS12TF (Fag Bearings Corporation), LS12 (Schatz Bearing Corporation Dba Schatz Bearing Corp) and 6 more.

What NSN replaces 3110-00-155-8905?

There are 6 known substitutes for 3110-00-155-8905: 3110-00-248-1811, 3120-00-661-7196, 5965-00-809-3839 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LS12?

Key specifications for LS12: Internal Fit-Up Designation: STANDARD; Nondefinitive Spec/std Data: 115 TYPE AND 00 GRADE; Standard Tolerance Designation: ABEC NO.1; Material: STEEL OVERALL. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-155-8905 still in active supply?

NSN 3110-00-155-8905 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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