PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S203X64Bearing,ball,annular

Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation · NSN 3110-01-284-3403 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-01-284-3403 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-284-3403. Primary manufacturer part number: S203X64.
Features
  • Bearing,ball,annular — FSC 3110
  • Load Direction: RADIAL
  • Bore Diameter: 0.6691 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN
  • Material: STEEL COMP 440C OVERALL
  • Lubrication Material: OIL
  • Standard Tolerance Designation: ABEC NO.5
  • Surface Finish: GROUND
  • Contact Angle: 17.5 DEGREES NOMINAL
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp 440c Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-01-284-3403, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 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
NSN3110-01-284-3403
Primary Part NumberS203X64
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSchaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation
StatusACTIVE
Load DirectionRADIAL
Bore Diameter0.6691 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN
MaterialSTEEL COMP 440C OVERALL
Lubrication MaterialOIL
Standard Tolerance DesignationABEC NO.5
Surface FinishGROUND
Contact Angle17.5 DEGREES NOMINAL
Bore ShapeSTRAIGHT
Material Document and ClassificationQQ-5-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lubrication Material Document and ClassificationMIL-C-8188 MIL SPEC SINGLE MATERIAL RESPONSE
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Overall Outside Diameter1.5746 INCHES MINIMUM AND 1.5748 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5999-00-105-7823 INTERCHANGEABLE
Wire Mesh,knitted
5306-00-619-6200 INTERCHANGEABLE
Bolt,eye
5305-01-597-292012759-01310 INTERCHANGEABLE
Screw,cap,socket Head
Fastenal Company Dba Fastenal Co
Cross-Reference Index
Part NumberManufacturer
39962 Williams International Co., L.l.c. (USA)
S203X64 PRIMARY Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA)
Related Parts
5999-00-105-7823INTERCHANGEABLE
WIRE MESH,KNITTED
5306-00-619-6200INTERCHANGEABLE
BOLT,EYE
5305-01-597-2920INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
12759-01310

Frequently Asked Questions

What is NSN 3110-01-284-3403?

NSN 3110-01-284-3403 is a Bearing,ball,annular, manufactured by Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-01-284-3403?

NSN 3110-01-284-3403 has 2 cross-referenced part numbers: 39962 (Williams International Co., L.l.c.), S203X64 (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation).

What NSN replaces 3110-01-284-3403?

There are 3 known substitutes for 3110-01-284-3403: 5999-00-105-7823, 5306-00-619-6200, 5305-01-597-2920. Verify interchangeability with system specifications before substitution.

What are the specifications of S203X64?

Key specifications for S203X64: Load Direction: RADIAL; Bore Diameter: 0.6691 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN; Material: STEEL COMP 440C OVERALL; Lubrication Material: OIL. 14 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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