PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20307DUBearing,ball,duplex

General Motors Corp Delco Moraine Ndh Div · NSN 3110-00-156-6815 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-156-6815 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-156-6815. Primary manufacturer part number: 20307DU.
Features
  • Bearing,ball,duplex — FSC 3110
  • Material: STEEL OVERALL
  • Retainer Fabrication Method: PRESSED
  • Standard Tolerance Designation: ABEC NO.1
  • Bearing Preload Designation: LIGHT
  • Bearing Preload Designation: LIGHT
  • Bore Diameter: 35.00 MILLIMETERS NOMINAL MM
  • Surface Finish: GROUND
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,ball,duplex, cataloged under National Stock Number 3110-00-156-6815, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is General Motors Corp Delco Moraine Ndh Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3110-00-156-6815
Primary Part Number20307DU
Item NameBearing,ball,duplex
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerGeneral Motors Corp Delco Moraine Ndh Div
StatusCANCELLED
MaterialSTEEL OVERALL
Retainer Fabrication MethodPRESSED
Standard Tolerance DesignationABEC NO.1
Bearing Preload DesignationLIGHT
Bearing Preload DesignationLIGHT
Bore Diameter35.00 MILLIMETERS NOMINAL MM
Surface FinishGROUND
MaterialSTEEL OVERALL
Load DirectionANGULAR
Style DesignatorUNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
Style DesignatorUNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
Overall Outside Diameter80.00 MILLIMETERS NOMINAL MM
Standard Tolerance DesignationABEC NO.1
Load DirectionANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
3110-00-101-0935 INTERCHANGEABLE
Bearing,ball,annular
3110-00-109-1254 INTERCHANGEABLE
Bearing,ball,duplex
3110-00-156-5232 INTERCHANGEABLE
Bearing,ball,annular
3110-00-156-6801 INTERCHANGEABLE
Bearing,ball,duplex
3110-00-554-3223 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-6106 INTERCHANGEABLE
Bearing,ball,annular
3110-00-862-6986 INTERCHANGEABLE
Bearing,ball,duplex
3110-01-050-1573 INTERCHANGEABLE
Bearing,ball,duplex
Cross-Reference Index
Part NumberManufacturer
20307DU General Motors Corp Delco Moraine Ndh Div (USA)
FF-B-171 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
20307DT General Motors Corp Delco Moraine Ndh Div (USA)
20307DT General Motors Corp (USA)
7307WNDU Timken Co Div the Timken Company (USA)
A-A-59626 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59626-207JABTU Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
Related Parts
3110-00-101-0935INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-109-1254INTERCHANGEABLE
BEARING,BALL,DUPLEX
3110-00-156-5232INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-156-6801INTERCHANGEABLE
BEARING,BALL,DUPLEX
3110-00-554-3223INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-6106INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-862-6986INTERCHANGEABLE
BEARING,BALL,DUPLEX
3110-01-050-1573INTERCHANGEABLE
BEARING,BALL,DUPLEX

Frequently Asked Questions

What is NSN 3110-00-156-6815?

NSN 3110-00-156-6815 is a Bearing,ball,duplex, manufactured by General Motors Corp Delco Moraine Ndh Div, classified under FSC 3110 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3110-00-156-6815?

NSN 3110-00-156-6815 has 7 cross-referenced part numbers: 20307DU (General Motors Corp Delco Moraine Ndh Div), FF-B-171 (Federal Specifications Promulgated by General Services Administration Washington DC), 20307DT (General Motors Corp Delco Moraine Ndh Div), 20307DT (General Motors Corp), 7307WNDU (Timken Co Div the Timken Company) and 2 more.

What NSN replaces 3110-00-156-6815?

There are 8 known substitutes for 3110-00-156-6815: 3110-00-101-0935, 3110-00-109-1254, 3110-00-156-5232 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20307DU?

Key specifications for 20307DU: Material: STEEL OVERALL; Retainer Fabrication Method: PRESSED; Overall Width: 21.0 MILLIMETERS NOMINAL MM; Standard Tolerance Designation: ABEC NO.1. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3110-00-156-6815 still in active supply?

NSN 3110-00-156-6815 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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