PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51120Bearing,ball,thrust

Skf Usa Inc. · NSN 3110-00-554-3100 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-3100 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-3100. Primary manufacturer part number: 51120.
Features
  • Bearing,ball,thrust — FSC 3110
  • Thrust Directional Capability Designation: SINGLE
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS
  • Surface Finish: GROUND
  • Alignment Type: RIGID
  • Retainer Fabrication Method: PRESSED
  • Overall Outside Diameter: 135.0 MILLIMETERS NOMINAL MM
  • Bore Smallest Diameter: 3.9362 INCHES NOMINAL IN
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 3110-00-554-3100, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 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
NSN3110-00-554-3100
Primary Part Number51120
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerSkf Usa Inc.
StatusCANCELLED
Thrust Directional Capability DesignationSINGLE
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR THRUST BEARINGS
Surface FinishGROUND
Alignment TypeRIGID
Retainer Fabrication MethodPRESSED
Overall Outside Diameter135.0 MILLIMETERS NOMINAL MM
Bore Smallest Diameter3.9362 INCHES NOMINAL IN
Style DesignatorGROOVED RACE SURFACE
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-188-50162920 INTERCHANGEABLE
Washer,lock
Telemechanics Inc
5133-00-236-3428 INTERCHANGEABLE
Drill,twist
8345-00-245-2801 INTERCHANGEABLE
Flag,individual
8345-00-247-0431 INTERCHANGEABLE
Flag,individual
7810-00-271-1789 INTERCHANGEABLE
Gloves,boxing
2940-00-377-28905570150 INTERCHANGEABLE
Filter Element,fluid
Rolls-Royce Solutions America Inc
5985-00-506-449751-12-0 INTERCHANGEABLE
Cover,antenna
Allard Nazarian Group, Inc. Dba Granite State Manufacturing
7510-00-558-211151120 INTERCHANGEABLE
Paint Stick,marking
La-Co Industries, Inc. Dba Markal Company
5360-00-597-8984SCB69871 INTERCHANGEABLE
Spring,helical,compression
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
1630-00-650-1164114458 INTERCHANGEABLE
Rod End Assy
Hydro-Aire Aerospace Corp
Cross-Reference Index
Part NumberManufacturer
51120 PRIMARY Skf Usa Inc. (USA)
114458 Wheelabrator Corp the Material Cleaning Systems Div (USA)
ED3456 Abc Acquisition Company Dba Aetna Bearing Company (USA)
2920 Skf Usa Inc. (USA)
ED3456 Aetna Steel Products Corp (USA)
51120J Skf Usa Inc. (USA)
64A98B90-1 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
A2722 Abc Acquisition Company Dba Aetna Bearing Company (USA)
51120-M PRIMARY Gwilliam Company, Inc. Div Ball & Roller Bearing Division (USA)
1520 Timken Co Div the Timken Company (USA)
51120JLA Skf Usa Inc. (USA)
Related Parts
5310-00-188-5016INTERCHANGEABLE
WASHER,LOCK
2920
5133-00-236-3428INTERCHANGEABLE
DRILL,TWIST
8345-00-245-2801INTERCHANGEABLE
FLAG,INDIVIDUAL
8345-00-247-0431INTERCHANGEABLE
FLAG,INDIVIDUAL
7810-00-271-1789INTERCHANGEABLE
GLOVES,BOXING
2940-00-377-2890INTERCHANGEABLE
FILTER ELEMENT,FLUID
5570150
5985-00-506-4497INTERCHANGEABLE
COVER,ANTENNA
51-12-0
7510-00-558-2111INTERCHANGEABLE
PAINT STICK,MARKING
51120
5360-00-597-8984INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
SCB69871
1630-00-650-1164INTERCHANGEABLE
ROD END ASSY
114458
2945-00-877-9592INTERCHANGEABLE
FILTER ELEMENT,FLUID
3-51254-1
2530-00-891-0488INTERCHANGEABLE
PARTS KIT,BRAKE CHAMBER
F19435

Frequently Asked Questions

What is NSN 3110-00-554-3100?

NSN 3110-00-554-3100 is a Bearing,ball,thrust, manufactured by Skf Usa Inc., classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-554-3100?

NSN 3110-00-554-3100 has 11 cross-referenced part numbers: 51120 (Skf Usa Inc.), 114458 (Wheelabrator Corp the Material Cleaning Systems Div), ED3456 (Abc Acquisition Company Dba Aetna Bearing Company), 2920 (Skf Usa Inc.), ED3456 (Aetna Steel Products Corp) and 6 more.

What NSN replaces 3110-00-554-3100?

There are 12 known substitutes for 3110-00-554-3100: 5310-00-188-5016, 5133-00-236-3428, 8345-00-245-2801 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51120?

Key specifications for 51120: Thrust Directional Capability Designation: SINGLE; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS; Surface Finish: GROUND; Alignment Type: RIGID. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-554-3100 still in active supply?

NSN 3110-00-554-3100 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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