PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-59645Bearing,ball,annular

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 3110-00-421-4973 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-421-4973 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-421-4973. Primary manufacturer part number: A-A-59645.
Features
  • Bearing,ball,annular — FSC 3110
  • Bore Diameter: 1.1250 INCHES NOMINAL IN
  • Standard Tolerance Designation: ABEC NO.3
  • Surface Finish: GROUND
  • Internal Fit-Up Designation: LOOSE
  • Load Direction: RADIAL
  • Shield Quantity: 2
  • Bore Shape: STRAIGHT
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 3110-00-421-4973, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-421-4973
Primary Part NumberA-A-59645
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Bore Diameter1.1250 INCHES NOMINAL IN
Standard Tolerance DesignationABEC NO.3
Surface FinishGROUND
Internal Fit-Up DesignationLOOSE
Load DirectionRADIAL
Shield Quantity2
Bore ShapeSTRAIGHT
Lubrication Material Document and ClassificationMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
Lubrication MaterialGREASE
Retainer Fabrication MethodPRESSED
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
MaterialSTEEL OVERALL
Overall Outside Diameter2.1250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-155-8925 INTERCHANGEABLE
Bearing,ball,annular
3110-00-443-5888 INTERCHANGEABLE
Bearing,ball,annular
3110-00-540-4662 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-2916 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-2923 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-3255 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-3311 INTERCHANGEABLE
Bearing,ball,annular
3110-00-554-5715 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
A-A-59645 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
77R18LR3MV3 General Motors Corp Delco Moraine Ndh Div (USA)
AA59645-06XHX Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
FF-B-2844/03 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
FFB2844/03BDXXH Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
AA59645-06ECBG Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
77R18LR3224MV3 General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
3110-00-155-8925INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-443-5888INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-540-4662INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-2916INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-2923INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-3255INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-3311INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-554-5715INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 3110-00-421-4973?

NSN 3110-00-421-4973 is a Bearing,ball,annular, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-421-4973?

NSN 3110-00-421-4973 has 7 cross-referenced part numbers: A-A-59645 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 77R18LR3MV3 (General Motors Corp Delco Moraine Ndh Div), AA59645-06XHX (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), FF-B-2844/03 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), FFB2844/03BDXXH (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 2 more.

What NSN replaces 3110-00-421-4973?

There are 8 known substitutes for 3110-00-421-4973: 3110-00-155-8925, 3110-00-443-5888, 3110-00-540-4662 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-59645?

Key specifications for A-A-59645: Bore Diameter: 1.1250 INCHES NOMINAL IN; Standard Tolerance Designation: ABEC NO.3; Surface Finish: GROUND; Internal Fit-Up Designation: LOOSE. 14 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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