PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RLS10Bearing,ball,annular

Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division · NSN 3110-00-248-1811 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-248-1811 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-248-1811. Primary manufacturer part number: RLS10.
Features
  • Bearing,ball,annular — FSC 3110
  • Standard Tolerance Designation: ABEC NO.1
  • Bore Diameter: 1.2500 INCHES NOMINAL IN
  • Retainer Fabrication Method: PRESSED
  • Material: STEEL OVERALL
  • Overall Outside Diameter: 2.7495 INCHES NOMINAL IN
  • Internal Fit-Up Designation: STANDARD
  • Load Direction: ANGULAR
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 3110-00-248-1811, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-248-1811
Primary Part NumberRLS10
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerKoyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division
StatusACTIVE
Standard Tolerance DesignationABEC NO.1
Bore Diameter1.2500 INCHES NOMINAL IN
Retainer Fabrication MethodPRESSED
MaterialSTEEL OVERALL
Overall Outside Diameter2.7495 INCHES NOMINAL IN
Internal Fit-Up DesignationSTANDARD
Load DirectionANGULAR
Bore ShapeSTRAIGHT
Surface FinishGROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-155-8905231638-3 INTERCHANGEABLE
Bearing,ball,annular
Naval Sea Systems Command
2910-00-483-1388726-31 INTERCHANGEABLE
Nozzle,fuel Injection
Perkins Engines Company Ltd - Perkins Parts Distribution Centre Uk
3110-01-191-5638 INTERCHANGEABLE
Bearing,wheel
Cross-Reference Index
Part NumberManufacturer
ALS10 Skf Sverige Ab (SWE)
LS12AC Fag Bearings Corporation (USA)
RLS10 PRIMARY Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division (USA)
ALS10 Skf Usa Inc. (USA)
Related Parts
3110-00-155-8905INTERCHANGEABLE
BEARING,BALL,ANNULAR
231638-3
2910-00-483-1388INTERCHANGEABLE
NOZZLE,FUEL INJECTION
726-31
3110-01-191-5638INTERCHANGEABLE
BEARING,WHEEL

Frequently Asked Questions

What is NSN 3110-00-248-1811?

NSN 3110-00-248-1811 is a Bearing,ball,annular, manufactured by Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-248-1811?

NSN 3110-00-248-1811 has 4 cross-referenced part numbers: ALS10 (Skf Sverige Ab), LS12AC (Fag Bearings Corporation), RLS10 (Koyo Corporation of U S a Dba Koyo Corp Usa-Sales Division Div Sales Division), ALS10 (Skf Usa Inc.).

What NSN replaces 3110-00-248-1811?

There are 3 known substitutes for 3110-00-248-1811: 3110-00-155-8905, 2910-00-483-1388, 3110-01-191-5638. Verify interchangeability with system specifications before substitution.

What are the specifications of RLS10?

Key specifications for RLS10: Standard Tolerance Designation: ABEC NO.1; Bore Diameter: 1.2500 INCHES NOMINAL IN; Retainer Fabrication Method: PRESSED; Material: STEEL OVERALL. 10 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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