PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51103Bearing,ball,thrust

Fag Bearings Corporation · NSN 3110-00-806-0649 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-806-0649 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-806-0649. Primary manufacturer part number: 51103.
Features
  • Bearing,ball,thrust — FSC 3110
  • Style Designator: GROOVED RACE SURFACE
  • Material: STEEL OVERALL
  • Bore Smallest Diameter: 17.00 MILLIMETERS NOMINAL MM
  • Surface Finish: GROUND
  • Alignment Type: RIGID
  • Thrust Directional Capability Designation: SINGLE
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,thrust, cataloged under National Stock Number 3110-00-806-0649, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-806-0649
Primary Part Number51103
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusACTIVE
Style DesignatorGROOVED RACE SURFACE
MaterialSTEEL OVERALL
Bore Smallest Diameter17.00 MILLIMETERS NOMINAL MM
Surface FinishGROUND
Alignment TypeRIGID
Thrust Directional Capability DesignationSINGLE
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR THRUST BEARINGS
Overall Outside Diameter30.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
1650-00-133-505751103 INTERCHANGEABLE
Sleeve,directional Control Linea
Pneudraulics, Inc.
5935-00-258-9976SC-B-69868 INTERCHANGEABLE
Connector,receptacle,electrical
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5950-00-359-7790328AS208-3 INTERCHANGEABLE
Transformer,current
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
6810-00-594-6375 INTERCHANGEABLE
Hydrofluosilicic Acid
5910-00-709-2028912-3333-000 INTERCHANGEABLE
Capacitor,fixed,mica Dielectric
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6810-00-935-5817 INTERCHANGEABLE
Hydrofluosilicic Acid
3110-01-057-957151103 INTERCHANGEABLE
Bearing,roller,thrust
Skf Usa Inc.
5342-01-136-619851103 INTERCHANGEABLE
Plug Seal
Shaw Development, Llc
4320-01-209-022051103 INTERCHANGEABLE
Compensator,handwhe
Hartmann Controls, Inc Div Hartmann Controls
6130-01-468-6205B073 INTERCHANGEABLE
Power Supply
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
Cross-Reference Index
Part NumberManufacturer
51103 PRIMARY Fag Bearings Corporation (USA)
51103 Ina Bearing Co Inc (USA)
51103 West Coast Machine Tools Inc (USA)
51103 Schaeffler Aerospace Canada Inc Div Fag Aerospace (CAN)
B703 West Coast Machine Tools Inc (USA)
Related Parts
1650-00-133-5057INTERCHANGEABLE
SLEEVE,DIRECTIONAL CONTROL LINEA
51103
5935-00-258-9976INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
SC-B-69868
5950-00-359-7790INTERCHANGEABLE
TRANSFORMER,CURRENT
328AS208-3
6810-00-594-6375INTERCHANGEABLE
HYDROFLUOSILICIC ACID
5910-00-709-2028INTERCHANGEABLE
CAPACITOR,FIXED,MICA DIELECTRIC
912-3333-000
6810-00-935-5817INTERCHANGEABLE
HYDROFLUOSILICIC ACID
3110-01-057-9571INTERCHANGEABLE
BEARING,ROLLER,THRUST
51103
5342-01-136-6198INTERCHANGEABLE
PLUG SEAL
51103
4320-01-209-0220INTERCHANGEABLE
COMPENSATOR,HANDWHE
51103
6130-01-468-6205INTERCHANGEABLE
POWER SUPPLY
B073
1005-01-487-2450INTERCHANGEABLE
PLATE,DEFLECTOR,BLAST
51103
6930-01-640-7478INTERCHANGEABLE
BUILDING 703 EQUIPM
B703

Frequently Asked Questions

What is NSN 3110-00-806-0649?

NSN 3110-00-806-0649 is a Bearing,ball,thrust, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-806-0649?

NSN 3110-00-806-0649 has 5 cross-referenced part numbers: 51103 (Fag Bearings Corporation), 51103 (Ina Bearing Co Inc), 51103 (West Coast Machine Tools Inc), 51103 (Schaeffler Aerospace Canada Inc Div Fag Aerospace), B703 (West Coast Machine Tools Inc).

What NSN replaces 3110-00-806-0649?

There are 12 known substitutes for 3110-00-806-0649: 1650-00-133-5057, 5935-00-258-9976, 5950-00-359-7790 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51103?

Key specifications for 51103: Style Designator: GROOVED RACE SURFACE; Material: STEEL OVERALL; Bore Smallest Diameter: 17.00 MILLIMETERS NOMINAL MM; Surface Finish: GROUND. 9 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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