PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

138-120Bearing,ball,thrust

General Motors Corp Electro-Motive Div · NSN 3110-00-156-1866 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-1866 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-1866. Primary manufacturer part number: 138-120.
Features
  • Bearing,ball,thrust — FSC 3110
  • Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS
  • Alignment Type: RIGID
  • Overall Outside Diameter: 53.0 MILLIMETERS NOMINAL MM
  • Surface Finish: GROUND
  • Bore Smallest Diameter: 30.0 MILLIMETERS NOMINAL MM
  • Thrust Directional Capability Designation: SINGLE
  • Style Designator: GROOVED RACE SURFACE
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 3110-00-156-1866, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is General Motors Corp Electro-Motive Div. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 40 commercial cross-references from 29 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
NSN3110-00-156-1866
Primary Part Number138-120
Item NameBearing,ball,thrust
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerGeneral Motors Corp Electro-Motive Div
StatusCANCELLED
Standard Tolerance DesignationAFBMA STD TOLERANCE FOR THRUST BEARINGS
Alignment TypeRIGID
Overall Outside Diameter53.0 MILLIMETERS NOMINAL MM
Surface FinishGROUND
Bore Smallest Diameter30.0 MILLIMETERS NOMINAL MM
Thrust Directional Capability DesignationSINGLE
Style DesignatorGROOVED RACE SURFACE
MaterialSTEEL COMP E51100 OR STEEL COMP E52100 OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3030-00-006-9600A54-2 INTERCHANGEABLE
Belts,v,matched Set
Contitech Usa, Inc Dba Veyance Technologies
5950-00-008-44719100-2254 INTERCHANGEABLE
Coil,radio Frequency
Keysight Technologies Inc
5305-00-010-0885100885 INTERCHANGEABLE
Screw,machine
General Motors Llc Dba General Motors Llc
5962-00-140-5362900492-1 INTERCHANGEABLE
Microcircuit,linear
Meggitt Safety Systems Inc
3110-00-142-4333AC542 INTERCHANGEABLE
Bearing,ball,airframe
Schatz Bearing Corporation Dba Schatz Bearing Corp
5935-00-149-3092NE949-12426 INTERCHANGEABLE
Connector,receptacle,electrical
Cardwell Condenser Corp Lapointe-Admiral Div
1650-00-203-3593 INTERCHANGEABLE
Filter Element,fluid
5331-00-286-72698142 INTERCHANGEABLE
O-Ring
Cummins Inc.
7530-00-324-1691 INTERCHANGEABLE
Chart,recording Instrument
1015-00-344-8752610390 INTERCHANGEABLE
Cover,cam Case
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
138-120 General Motors Corp Electro-Motive Div (USA)
906J Skf Usa Inc. (USA)
10390 Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group (USA)
DL30 Fag Bearings Corporation (USA)
100885 Cooper Cameron Corp Ajax-Superior Div (USA)
A542 The Boeing Company Div Legacy Wichita (USA)
16A35 Dresser-Rand Co Ingersoll-Rand Opns a Joint Venture (USA)
1006 Federal-Mogul Corp Government Sales Dept (USA)
A-A-52491 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
72-6970-939 Coltec Industries Inc Dba Fairbanks Morse Engine Fm/alco (USA)
N1806 Timken Co Div the Timken Company (USA)
12Z317-44 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
QD100-142 Clyde Union Inc Dba Clydeunion Pumps (USA)
BRG5003 Linde Lift Truck Corp. (USA)
4891 Universal Motors-Oshkosh a Div of Medalist Industries Inc (USA)
906F Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. (USA)
A52491-31 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
BRG5003 Linde Material Handling North America Corporation (USA)
177030-97 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
16A35 Siemens Energy, Inc. Dba Dresser-Rand (USA)
Related Parts
3030-00-006-9600INTERCHANGEABLE
BELTS,V,MATCHED SET
A54-2
5950-00-008-4471INTERCHANGEABLE
COIL,RADIO FREQUENCY
9100-2254
5305-00-010-0885INTERCHANGEABLE
SCREW,MACHINE
100885
5962-00-140-5362INTERCHANGEABLE
MICROCIRCUIT,LINEAR
900492-1
3110-00-142-4333INTERCHANGEABLE
BEARING,BALL,AIRFRAME
AC542
5935-00-149-3092INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
NE949-12426
1650-00-203-3593INTERCHANGEABLE
FILTER ELEMENT,FLUID
5331-00-286-7269INTERCHANGEABLE
O-RING
8142
7530-00-324-1691INTERCHANGEABLE
CHART,RECORDING INSTRUMENT
1015-00-344-8752INTERCHANGEABLE
COVER,CAM CASE
610390
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SHAFT,STRAIGHT
SM-B-157153
1650-00-397-5682INTERCHANGEABLE
CAP,VALVE
25530

Frequently Asked Questions

What is NSN 3110-00-156-1866?

NSN 3110-00-156-1866 is a Bearing,ball,thrust, manufactured by General Motors Corp Electro-Motive Div, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-156-1866?

NSN 3110-00-156-1866 has 40 cross-referenced part numbers: 138-120 (General Motors Corp Electro-Motive Div), 906J (Skf Usa Inc.), 10390 (Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group), DL30 (Fag Bearings Corporation), 100885 (Cooper Cameron Corp Ajax-Superior Div) and 35 more.

What NSN replaces 3110-00-156-1866?

There are 12 known substitutes for 3110-00-156-1866: 3030-00-006-9600, 5950-00-008-4471, 5305-00-010-0885 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 138-120?

Key specifications for 138-120: Standard Tolerance Designation: AFBMA STD TOLERANCE FOR THRUST BEARINGS; Alignment Type: RIGID; Overall Height: 15.5 MILLIMETERS NOMINAL MM; Overall Outside Diameter: 53.0 MILLIMETERS NOMINAL MM. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-156-1866 still in active supply?

NSN 3110-00-156-1866 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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