PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56603Bearing,ball,annular

Skf Usa Inc. · NSN 3110-00-109-7063 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-109-7063 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-109-7063. Primary manufacturer part number: 56603.
Features
  • Bearing,ball,annular — FSC 3110
  • Material: STEEL COMP E52100 OUTER RING
  • Internal Fit-Up Designation: STANDARD
  • Standard Tolerance Designation: ABEC NO.3
  • Material: COPPER ALLOY RETAINER
  • Material: STEEL COMP E52100 INNER RING
  • Material: STEEL COMP E52100 BALL
  • Style Designator: NON-LOADING GROOVE, NON-SEPARABLE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E52100 Outer Ring construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-109-7063, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, 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
NSN3110-00-109-7063
Primary Part Number56603
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusACTIVE
MaterialSTEEL COMP E52100 OUTER RING
Internal Fit-Up DesignationSTANDARD
Standard Tolerance DesignationABEC NO.3
MaterialCOPPER ALLOY RETAINER
MaterialSTEEL COMP E52100 INNER RING
MaterialSTEEL COMP E52100 BALL
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Load DirectionRADIAL
Bore ShapeSTRAIGHT
Overall Outside Diameter1.1808 INCHES MINIMUM AND 1.1811 INCHES MAXIMUM IN
Surface FinishGROUND
Bore Diameter0.6691 INCHES MINIMUM AND 0.6693 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5930-00-438-6774 INTERCHANGEABLE
Switch,rotary
6525-01-166-903356-603 INTERCHANGEABLE
Screen,x-Ray Protective
Fluke Electronics Corp
4520-01-281-145255964 INTERCHANGEABLE
Heating Element,electrical,nonim
American Permanent Ware Company Dba Apw/wyott Foodservice Eqp Co
5340-01-444-5198 INTERCHANGEABLE
Connector,rod End
Cross-Reference Index
Part NumberManufacturer
1903S03-003C Skf Usa Inc. (USA)
56603 Parker Hannifin Corporation Div Hydraulic Systems Division (USA)
1903S3 Skf Usa Inc. (USA)
56603 Mpb Corporation Dba Mpb Corp (USA)
56603 PRIMARY Skf Usa Inc. (USA)
Related Parts
5930-00-438-6774INTERCHANGEABLE
SWITCH,ROTARY
6525-01-166-9033INTERCHANGEABLE
SCREEN,X-RAY PROTECTIVE
56-603
4520-01-281-1452INTERCHANGEABLE
HEATING ELEMENT,ELECTRICAL,NONIM
55964
5340-01-444-5198INTERCHANGEABLE
CONNECTOR,ROD END

Frequently Asked Questions

What is NSN 3110-00-109-7063?

NSN 3110-00-109-7063 is a Bearing,ball,annular, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-109-7063?

NSN 3110-00-109-7063 has 5 cross-referenced part numbers: 1903S03-003C (Skf Usa Inc.), 56603 (Parker Hannifin Corporation Div Hydraulic Systems Division), 1903S3 (Skf Usa Inc.), 56603 (Mpb Corporation Dba Mpb Corp), 56603 (Skf Usa Inc.).

What NSN replaces 3110-00-109-7063?

There are 4 known substitutes for 3110-00-109-7063: 5930-00-438-6774, 6525-01-166-9033, 4520-01-281-1452 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56603?

Key specifications for 56603: Material: STEEL COMP E52100 OUTER RING; Internal Fit-Up Designation: STANDARD; Standard Tolerance Designation: ABEC NO.3; Material: COPPER ALLOY RETAINER. 13 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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