PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20306Bearing,ball,annular

General Motors Corp · NSN 3110-00-554-6106 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-554-6106 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-554-6106. Primary manufacturer part number: 20306.
Features
  • Bearing,ball,annular — FSC 3110
  • Standard Tolerance Designation: ABEC NO.1
  • Load Direction: ANGULAR
  • Bore Shape: STRAIGHT
  • Material: STEEL OVERALL
  • Style Designator: COUNTERBORED OUTER RING, NON-SEPARABLE
  • Bore Diameter: 30.00 MILLIMETERS NOMINAL MM
  • Contact Angle: 25.0 DEGREES MAXIMUM
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-554-6106, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is General Motors Corp. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 27 commercial cross-references from 15 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
NSN3110-00-554-6106
Primary Part Number20306
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusCANCELLED
Standard Tolerance DesignationABEC NO.1
Load DirectionANGULAR
Bore ShapeSTRAIGHT
MaterialSTEEL OVERALL
Style DesignatorCOUNTERBORED OUTER RING, NON-SEPARABLE
Bore Diameter30.00 MILLIMETERS NOMINAL MM
Contact Angle25.0 DEGREES MAXIMUM
Overall Outside Diameter72.00 MILLIMETERS NOMINAL MM
Retainer Fabrication MethodPRESSED
Surface FinishGROUND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5340-00-045-942420306 INTERCHANGEABLE
Seat,helical Compression Spring
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
3110-00-101-0935 INTERCHANGEABLE
Bearing,ball,annular
6625-00-106-4292425020-0R1F INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
3110-00-109-1254 INTERCHANGEABLE
Bearing,ball,duplex
3110-00-144-89250052076 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
3110-00-155-6843 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-1711 INTERCHANGEABLE
Bearing,ball,thrust
3110-00-156-5232 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-6801 INTERCHANGEABLE
Bearing,ball,duplex
3110-00-156-6815 INTERCHANGEABLE
Bearing,ball,duplex
Cross-Reference Index
Part NumberManufacturer
20306 General Motors Corp (USA)
601327 Elwell-Parker Electric Co (USA)
5023-019 Raytheon Company Dba Raytheon (USA)
7306W Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation (USA)
H20306-1A General Motors Corp (USA)
319696-547 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
K7306 Orton-Mccullough Crane Co (USA)
280026-47 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
H20306-1A General Motors Corp Delco Moraine Ndh Div (USA)
7306W Timken Co Div the Timken Company (USA)
H20306-1 General Motors Corp Delco Moraine Ndh Div (USA)
MJT30 Renold Canada Ltd (CAN)
540239-13 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
4306 Hoover Group Inc Ball and Roller Div (USA)
261206-7 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
H20306 General Motors Corp (USA)
H20306 General Motors Corp Delco Moraine Ndh Div (USA)
20306 General Motors Corp Delco Moraine Ndh Div (USA)
225305-7 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
B3338-43 Superior Air Products Co (USA)
Related Parts
5340-00-045-9424INTERCHANGEABLE
SEAT,HELICAL COMPRESSION SPRING
20306
3110-00-101-0935INTERCHANGEABLE
BEARING,BALL,ANNULAR
6625-00-106-4292INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
425020-0R1F
3110-00-109-1254INTERCHANGEABLE
BEARING,BALL,DUPLEX
3110-00-144-8925INTERCHANGEABLE
BEARING,BALL,ANNULAR
0052076
3110-00-155-6843INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-1711INTERCHANGEABLE
BEARING,BALL,THRUST
3110-00-156-5232INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-6801INTERCHANGEABLE
BEARING,BALL,DUPLEX
3110-00-156-6815INTERCHANGEABLE
BEARING,BALL,DUPLEX
5120-00-222-1401INTERCHANGEABLE
CLAMP,SCREW,QUICK ADJUSTING
3706HD
6625-00-230-4511INTERCHANGEABLE
INTERFACE MODULE AS

Frequently Asked Questions

What is NSN 3110-00-554-6106?

NSN 3110-00-554-6106 is a Bearing,ball,annular, manufactured by General Motors Corp, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-554-6106?

NSN 3110-00-554-6106 has 27 cross-referenced part numbers: 20306 (General Motors Corp), 601327 (Elwell-Parker Electric Co), 5023-019 (Raytheon Company Dba Raytheon), 7306W (Schaeffler Aerospace Usa Corp Div Schaeffler Aerospace Usa Corporation), H20306-1A (General Motors Corp) and 22 more.

What NSN replaces 3110-00-554-6106?

There are 12 known substitutes for 3110-00-554-6106: 5340-00-045-9424, 3110-00-101-0935, 6625-00-106-4292 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20306?

Key specifications for 20306: Standard Tolerance Designation: ABEC NO.1; Load Direction: ANGULAR; Bore Shape: STRAIGHT; Material: STEEL OVERALL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-554-6106 still in active supply?

NSN 3110-00-554-6106 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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