PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

RLS4Bearing,ball,annular

Skf Usa Inc. · NSN 3110-00-203-4103 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-203-4103 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-203-4103. Primary manufacturer part number: RLS4.
Features
  • Bearing,ball,annular — FSC 3110
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
  • Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
  • Load Direction: RADIAL
  • Bore Shape: STRAIGHT
  • Standard Tolerance Designation: ABEC NO.1
  • Surface Finish: GROUND
  • Retainer Fabrication Method: PRESSED
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 3110-00-203-4103, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Skf Usa Inc.. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 37 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-203-4103
Primary Part NumberRLS4
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusCANCELLED
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
Surface FinishGROUND
Retainer Fabrication MethodPRESSED
Internal Fit-Up DesignationSTANDARD
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Internal Fit-Up DesignationSTANDARD
Load DirectionRADIAL
MaterialSTEEL OVERALL
Overall Outside Diameter32.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.1
Lubrication MaterialGREASE
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Bore Diameter12.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4720-00-080-4203 INTERCHANGEABLE
Hose,nonmetallic
4720-00-105-227927511 INTERCHANGEABLE
Hose Assembly,nonmetallic
Gates Corporation
3110-00-117-2339D208 INTERCHANGEABLE
Bearing,roller,journal
Regal Beloit America, Inc. Dba Rollway Bearing
5330-00-139-6943 INTERCHANGEABLE
Seal
3110-00-144-8886 INTERCHANGEABLE
Bearing,ball,annular
4710-00-177-87564-320-1 INTERCHANGEABLE
Tube,undervoltage
Fireye Inc
5133-00-189-9290 INTERCHANGEABLE
Drill,twist
2940-00-221-5791FT1028 INTERCHANGEABLE
Filter Element,fluid
Honeywell International Inc Dba Honeywell Div Consumer Products Group
3455-00-228-529894193 INTERCHANGEABLE
Cutter,milling,end
Jcorps Dba Lashundra Craig
5330-00-248-6093B39 INTERCHANGEABLE
Gasket
Insinger Machine Co
Cross-Reference Index
Part NumberManufacturer
956857 Clark Equipment Co (USA)
W368 Columbus Mckinnon Corp Cm Hoist Div (USA)
3201XR1A General Motors Corp Delco Moraine Ndh Div (USA)
LJ 1/2 Ntn-Snr Roulements (FRA)
RLS4 Skf France (FRA)
D208 Dana Off Highway Products, Llc (USA)
D15-460 PIECE 2 Westinghouse Electric Corp Sturtevant Div (USA)
RLS4 PRIMARY Skf Usa Inc. (USA)
315739-5 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
CSA-378-201 Cooper Cameron Corp Cooper Bessemer Reciprocating Products Div (USA)
90122 PRIMARY Telemechanics Inc (USA)
P201KDDFS381 Timken Co Div the Timken Company (USA)
90122 At and T Corp (USA)
LS5 Equitable Bearing Co Inc (USA)
27511 Unisys Corp Defense Systems C S D Field Engineering (USA)
90122 Lucent Technologies Inc Dba Federal Marketing Group (USA)
92350 American Telephone and Telegraph Co (USA)
8260035 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
177030-90 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
43201 Logical Technical Services Corp Corporate Headquarters (USA)
Related Parts
4720-00-080-4203INTERCHANGEABLE
HOSE,NONMETALLIC
4720-00-105-2279INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
27511
3110-00-117-2339INTERCHANGEABLE
BEARING,ROLLER,JOURNAL
D208
5330-00-139-6943INTERCHANGEABLE
SEAL
3110-00-144-8886INTERCHANGEABLE
BEARING,BALL,ANNULAR
4710-00-177-8756INTERCHANGEABLE
TUBE,UNDERVOLTAGE
4-320-1
5133-00-189-9290INTERCHANGEABLE
DRILL,TWIST
2940-00-221-5791INTERCHANGEABLE
FILTER ELEMENT,FLUID
FT1028
3455-00-228-5298INTERCHANGEABLE
CUTTER,MILLING,END
94193
5330-00-248-6093INTERCHANGEABLE
GASKET
B39
5965-00-296-6053INTERCHANGEABLE
LOUDSPEAKER,PERMANENT MAGNET
D208
5962-00-300-2375INTERCHANGEABLE
MICROCIRCUIT,LINEAR
43-201

Frequently Asked Questions

What is NSN 3110-00-203-4103?

NSN 3110-00-203-4103 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-203-4103?

NSN 3110-00-203-4103 has 50 cross-referenced part numbers: 956857 (Clark Equipment Co), W368 (Columbus Mckinnon Corp Cm Hoist Div), 3201XR1A (General Motors Corp Delco Moraine Ndh Div), LJ 1/2 (Ntn-Snr Roulements), RLS4 (Skf France) and 45 more.

What NSN replaces 3110-00-203-4103?

There are 12 known substitutes for 3110-00-203-4103: 4720-00-080-4203, 4720-00-105-2279, 3110-00-117-2339 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of RLS4?

Key specifications for RLS4: Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Lubrication Material Document and Classification: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE; Load Direction: RADIAL; Bore Shape: STRAIGHT. 21 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-203-4103 still in active supply?

NSN 3110-00-203-4103 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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