PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A2104Bearing,ball,thrust

Automotive Thrust Bearing Corp · NSN 3110-00-155-9145 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-9145 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-9145. Primary manufacturer part number: A2104.
Features
  • Bearing,ball,thrust — FSC 3110
  • Style Designator: FLAT RACE SURFACE, STAGGERED BALL RETAINER
  • Overall Outside Diameter: 1.3436 INCHES MINIMUM AND 1.3438 INCHES MAXIMUM IN
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Thrust Directional Capability Designation: SINGLE
  • Surface Finish: GROUND
  • Alignment Type: RIGID
  • Bore Smallest Diameter: 0.6915 INCHES MINIMUM AND 0.6935 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Comp E51100 or Steel Comp E52100 Overall construction
General Description

The Bearing,ball,thrust, cataloged under National Stock Number 3110-00-155-9145, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Automotive Thrust Bearing Corp. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 8 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
NSN3110-00-155-9145
Primary Part NumberA2104
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerAutomotive Thrust Bearing Corp
StatusACTIVE
Style DesignatorFLAT RACE SURFACE, STAGGERED BALL RETAINER
Overall Outside Diameter1.3436 INCHES MINIMUM AND 1.3438 INCHES MAXIMUM IN
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Thrust Directional Capability DesignationSINGLE
Surface FinishGROUND
Alignment TypeRIGID
Bore Smallest Diameter0.6915 INCHES MINIMUM AND 0.6935 INCHES MAXIMUM IN
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5140-00-106-56165140-00-106-5616 INTERCHANGEABLE
Roll,tools and Accessories
General Services Administration Federal Supply Service
5340-00-115-6564A2104 INTERCHANGEABLE
Disk,solid,plain
Simmonds Precision Products Inc
5985-00-138-4683704AS6141 INTERCHANGEABLE
Attenuator,fixed
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
3110-00-158-618986FT82 INTERCHANGEABLE
Bearing,ball,thrust
Oshkosh Defense Llc
3110-00-159-1694292-4MILG3278 INTERCHANGEABLE
Bearing,roller,needle
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5120-00-189-29925120-00-189-2992 INTERCHANGEABLE
Key,socket Head Screw
General Services Administration Federal Supply Service
4730-00-193-6968 INTERCHANGEABLE
Flange,pipe
5950-00-199-216712Z13000-335 INTERCHANGEABLE
Transformer,power
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5985-00-201-3680L4 INTERCHANGEABLE
Attenuator,variable
Yosemite Investment Inc Dba North American Capacitor Co
3110-00-227-2597A4812 INTERCHANGEABLE
Bearing,ball,linear Motion
Thomson Industries Inc
Cross-Reference Index
Part NumberManufacturer
A2104 Automotive Thrust Bearing Corp (USA)
MS17162 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
B4 Cooper Cameron Corp Ajax-Superior Div (USA)
5686 Cooper Cameron Corp Ajax-Superior Div (USA)
A4 Gwilliam Company, Inc. Div Ball & Roller Bearing Division (USA)
FT4 Andrews Bearing Corp Div of Mpb Corp Sub of Wheelabrator-Frye Inc (USA)
KANGAR00 Timken Aerospace, Inc Dba Torrington Product (USA)
MS17162-3 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
B4 Abc Acquisition Company Dba Aetna Bearing Company (USA)
W154PC5686 Cooper Cameron Corp Ajax-Superior Div (USA)
KANGAR00 Cooper Cameron Corp Ajax-Superior Div (USA)
2C193PC5686 Cooper Cameron Corp Ajax-Superior Div (USA)
L4 Ann Arbor Bearing and Mfg Co (USA)
A3204 Automotive Thrust Bearing Corp (USA)
Related Parts
5140-00-106-5616INTERCHANGEABLE
ROLL,TOOLS AND ACCESSORIES
5140-00-106-5616
5340-00-115-6564INTERCHANGEABLE
DISK,SOLID,PLAIN
A2104
5985-00-138-4683INTERCHANGEABLE
ATTENUATOR,FIXED
704AS6141
3110-00-158-6189INTERCHANGEABLE
BEARING,BALL,THRUST
86FT82
3110-00-159-1694INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
292-4MILG3278
5120-00-189-2992INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
5120-00-189-2992
4730-00-193-6968INTERCHANGEABLE
FLANGE,PIPE
5950-00-199-2167INTERCHANGEABLE
TRANSFORMER,POWER
12Z13000-335
5985-00-201-3680INTERCHANGEABLE
ATTENUATOR,VARIABLE
L4
3110-00-227-2597INTERCHANGEABLE
BEARING,BALL,LINEAR MOTION
A4812
5930-00-233-6845INTERCHANGEABLE
SWITCH,THERMOSTATIC
5960-00-237-0077INTERCHANGEABLE
ELECTRON TUBE

Frequently Asked Questions

What is NSN 3110-00-155-9145?

NSN 3110-00-155-9145 is a Bearing,ball,thrust, manufactured by Automotive Thrust Bearing Corp, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-9145?

NSN 3110-00-155-9145 has 14 cross-referenced part numbers: A2104 (Automotive Thrust Bearing Corp), MS17162 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), B4 (Cooper Cameron Corp Ajax-Superior Div), 5686 (Cooper Cameron Corp Ajax-Superior Div), A4 (Gwilliam Company, Inc. Div Ball & Roller Bearing Division) and 9 more.

What NSN replaces 3110-00-155-9145?

There are 12 known substitutes for 3110-00-155-9145: 5140-00-106-5616, 5340-00-115-6564, 5985-00-138-4683 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A2104?

Key specifications for A2104: Style Designator: FLAT RACE SURFACE, STAGGERED BALL RETAINER; Overall Outside Diameter: 1.3436 INCHES MINIMUM AND 1.3438 INCHES MAXIMUM IN; Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL; Thrust Directional Capability Designation: SINGLE. 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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