PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FFB171Bearing,ball,annular

Federal Specifications Promulgated by General Services Administration Washington DC · NSN 3110-00-155-8931 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-155-8931 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-155-8931. Primary manufacturer part number: FFB171.
Features
  • Bearing,ball,annular — FSC 3110
  • Shield Quantity: 2
  • Internal Fit-Up Designation: STANDARD
  • Surface Finish: GROUND
  • Shield Quantity: 2
  • Retainer Fabrication Method: PRESSED
  • Lubrication Material: GREASE
  • 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 3110-00-155-8931, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 26 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-155-8931
Primary Part NumberFFB171
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFederal Specifications Promulgated by General Services Administration Washington DC
StatusACTIVE
Shield Quantity2
Internal Fit-Up DesignationSTANDARD
Surface FinishGROUND
Shield Quantity2
Retainer Fabrication MethodPRESSED
Lubrication MaterialGREASE
Bore ShapeSTRAIGHT
Standard Tolerance DesignationABEC NO.1
Load DirectionRADIAL
Lubrication Material Document and ClassificationDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Nondefinitive Spec/std Data115 TYPE AND 00 GRADE
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Departure From Cited DesignatorAS MODIFIED BY OVERALL OD,AS MODIFIED BY VOERALL WIDTH,AS MODIFIED BT SHIELD QUANTITY
Overall Outside Diameter3.0000 INCHES NOMINAL IN
Nondefinitive Spec/std Data115 TYPE AND 00 GRADE
MaterialSTEEL OVERALL
Lubrication MaterialGREASE
Lubrication Material Document and ClassificationDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
Internal Fit-Up DesignationSTANDARD
Standard Tolerance DesignationABEC NO.1
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Bore ShapeSTRAIGHT
Load DirectionRADIAL
MaterialSTEEL OVERALL
Departure From Cited DesignatorAS MODIFIED BY OVERALL OD,AS MODIFIED BY VOERALL WIDTH,AS MODIFIED BT SHIELD QUANTITY
Bore Diameter1.7500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-155-8984 INTERCHANGEABLE
Bearing,ball,annular
3110-00-155-8988 INTERCHANGEABLE
Bearing,ball,annular
3110-00-155-8991 INTERCHANGEABLE
Bearing,ball,annular
3110-00-159-9061 INTERCHANGEABLE
Bearing,ball,annular
3110-00-640-8953 INTERCHANGEABLE
Bearing,ball,annular
Cross-Reference Index
Part NumberManufacturer
FFB171 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
XLS1 3-4FF Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
A-A-59646 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
AA59646-04AGB Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
XLS1 3-4PP Fag Bearings Corporation (USA)
Related Parts
3110-00-155-8984INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-155-8988INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-155-8991INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-159-9061INTERCHANGEABLE
BEARING,BALL,ANNULAR
3110-00-640-8953INTERCHANGEABLE
BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 3110-00-155-8931?

NSN 3110-00-155-8931 is a Bearing,ball,annular, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-155-8931?

NSN 3110-00-155-8931 has 5 cross-referenced part numbers: FFB171 (Federal Specifications Promulgated by General Services Administration Washington DC), XLS1 3-4FF (Schatz Bearing Corporation Dba Schatz Bearing Corp), A-A-59646 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), AA59646-04AGB (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), XLS1 3-4PP (Fag Bearings Corporation).

What NSN replaces 3110-00-155-8931?

There are 5 known substitutes for 3110-00-155-8931: 3110-00-155-8984, 3110-00-155-8988, 3110-00-155-8991 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FFB171?

Key specifications for FFB171: Shield Quantity: 2; Internal Fit-Up Designation: STANDARD; Surface Finish: GROUND; Shield Quantity: 2. 27 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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