PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LS12Bearing,plain,self-Aligning

Roller Bearing Company of America, Inc. · NSN 3120-00-661-7196 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-7196 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-7196. Primary manufacturer part number: LS12.
Features
  • Bearing,plain,self-Aligning — FSC 3120
  • Outer Member Width: 0.9370 INCHES NOMINAL IN
  • Material: STEEL OUTER RACE MEMBER
  • Outer Member Outside Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
  • Inner Member Width: 1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
  • Lubrication Feature: PERFORATION INNER MEMBER
  • Style Designator: WITH INSERT AND/OR LINER
  • Surface Treatment: CADMIUM OUTER RACE MEMBER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Outer Race Member construction
General Description

The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-00-661-7196, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Roller Bearing Company of America, Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-661-7196
Primary Part NumberLS12
Item NameBearing,plain,self-Aligning
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerRoller Bearing Company of America, Inc.
StatusACTIVE
Outer Member Width0.9370 INCHES NOMINAL IN
MaterialSTEEL OUTER RACE MEMBER
Outer Member Outside Diameter1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Inner Member Width1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN
Lubrication FeaturePERFORATION INNER MEMBER
Style DesignatorWITH INSERT AND/OR LINER
Surface TreatmentCADMIUM OUTER RACE MEMBER
Surface TreatmentCHROMIUM INNER MEMBER
MaterialSTEEL COMP E52100 INNER MEMBER
Lubrication FeatureGROOVE INTERNAL INNER MEMBER
Bore Diameter0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3110-00-155-8905231638-3 INTERCHANGEABLE
Bearing,ball,annular
Naval Sea Systems Command
5965-00-809-3839 INTERCHANGEABLE
Loudspeaker,permanent Magnet
1730-01-068-8016LS-12 INTERCHANGEABLE
Fixture,parachute Packing
The Boeing Company
4720-01-408-6948LS12 INTERCHANGEABLE
Hose,metallic
Titeflex Canada Ltd
Cross-Reference Index
Part NumberManufacturer
LS12 PRIMARY Roller Bearing Company of America, Inc. (USA)
Related Parts
3110-00-155-8905INTERCHANGEABLE
BEARING,BALL,ANNULAR
231638-3
5965-00-809-3839INTERCHANGEABLE
LOUDSPEAKER,PERMANENT MAGNET
1730-01-068-8016INTERCHANGEABLE
FIXTURE,PARACHUTE PACKING
LS-12
4720-01-408-6948INTERCHANGEABLE
HOSE,METALLIC
LS12

Frequently Asked Questions

What is NSN 3120-00-661-7196?

NSN 3120-00-661-7196 is a Bearing,plain,self-Aligning, manufactured by Roller Bearing Company of America, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-7196?

NSN 3120-00-661-7196 has 1 cross-referenced part number: LS12 (Roller Bearing Company of America, Inc.).

What NSN replaces 3120-00-661-7196?

There are 4 known substitutes for 3120-00-661-7196: 3110-00-155-8905, 5965-00-809-3839, 1730-01-068-8016 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LS12?

Key specifications for LS12: Outer Member Width: 0.9370 INCHES NOMINAL IN; Material: STEEL OUTER RACE MEMBER; Outer Member Outside Diameter: 1.2495 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN; Inner Member Width: 1.2450 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN. 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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