PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

G4Y17MILG3278ABearing,ball,annular

Fag Bearings Corporation · NSN 3110-00-143-2992 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-143-2992 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-143-2992. Primary manufacturer part number: G4Y17MILG3278A.
Features
  • Bearing,ball,annular — FSC 3110
  • Groove Radius: 0.5310 INCHES NOMINAL IN
  • Outer Ring Width: 0.5630 INCHES NOMINAL IN
  • Lubrication Material: GREASE
  • Shield Quantity: 2
  • Lubrication Material Document and Classification: MIL-G-23287 MIL SPEC SINGLE MATERIAL RESPONSE
  • Inner Ring Width: 0.6250 INCHES NOMINAL IN
  • Material: STEEL OR STEEL CORROSION RESISTING SHIELD
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel or Steel Corrosion Resisting Shield construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-143-2992, is classified within Federal Supply Class 3110 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Fag Bearings Corporation. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-143-2992
Primary Part NumberG4Y17MILG3278A
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerFag Bearings Corporation
StatusACTIVE
Groove Radius0.5310 INCHES NOMINAL IN
Outer Ring Width0.5630 INCHES NOMINAL IN
Lubrication MaterialGREASE
Shield Quantity2
Lubrication Material Document and ClassificationMIL-G-23287 MIL SPEC SINGLE MATERIAL RESPONSE
Inner Ring Width0.6250 INCHES NOMINAL IN
MaterialSTEEL OR STEEL CORROSION RESISTING SHIELD
Style DesignatorSINGLE ROW RIGID, CONCAVE OD INNER RING EXTENDED BOTH SIDES
MaterialSTEEL INNER RING
Surface TreatmentCADMIUM EXPOSED SURFACES AS MOUNTED
MaterialSTEEL BALL
MaterialSTEEL OUTER RING
Overall Outside Diameter1.0320 INCHES NOMINAL IN
Groove Diameter0.9060 INCHES NOMINAL IN
Bore Diameter0.2500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
2915-00-064-056043114 INTERCHANGEABLE
Parts Kit,valve,ove
Meggitt North Hollywood Inc
5120-00-247-08685120-00-247-0868 INTERCHANGEABLE
Tweezers,craftsman's
General Services Administration Federal Supply Service
6810-00-264-6633 INTERCHANGEABLE
Potassium Ferrocyanide
3110-00-520-3886G4Y17FS160 INTERCHANGEABLE
Bearing,ball,annular
Rbc Aircraft Products, Inc.
4820-00-689-1204D956 INTERCHANGEABLE
Valve,regulating,temperature
Insinger Machine Co
5670-01-008-821743-1 1-4 INTERCHANGEABLE
Flange,railing
Hollaender Manufacturing Co
6625-01-294-76694311B-4 INTERCHANGEABLE
Divider,power,radio Frequency
Narda Holdings, Inc. Dba Narda-Miteq Div Narda-Miteq
Cross-Reference Index
Part NumberManufacturer
G4Y17MILG3278A PRIMARY Fag Bearings Corporation (USA)
G4Y17 Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
G4Y17 Timken Co Div the Timken Company (USA)
G4Y17MILG3278A Timken Co Div the Timken Company (USA)
G4Y17FS160 Rbc Aircraft Products, Inc. (USA)
G4Y17 Rbc Aircraft Products, Inc. (USA)
43114 Raytheon Technical Services Company (USA)
G4Y17MILG3278A Schatz Bearing Corporation Dba Schatz Bearing Corp (USA)
G4Y17FS160 Timken Co Div the Timken Company (USA)
G4Y17 PRIMARY Fag Bearings Corporation (USA)
Related Parts
2915-00-064-0560INTERCHANGEABLE
PARTS KIT,VALVE,OVE
43114
5120-00-247-0868INTERCHANGEABLE
TWEEZERS,CRAFTSMAN'S
5120-00-247-0868
6810-00-264-6633INTERCHANGEABLE
POTASSIUM FERROCYANIDE
3110-00-520-3886INTERCHANGEABLE
BEARING,BALL,ANNULAR
G4Y17FS160
4820-00-689-1204INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
D956
5670-01-008-8217INTERCHANGEABLE
FLANGE,RAILING
43-1 1-4
6625-01-294-7669INTERCHANGEABLE
DIVIDER,POWER,RADIO FREQUENCY
4311B-4

Frequently Asked Questions

What is NSN 3110-00-143-2992?

NSN 3110-00-143-2992 is a Bearing,ball,annular, manufactured by Fag Bearings Corporation, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-143-2992?

NSN 3110-00-143-2992 has 10 cross-referenced part numbers: G4Y17MILG3278A (Fag Bearings Corporation), G4Y17 (Schatz Bearing Corporation Dba Schatz Bearing Corp), G4Y17 (Timken Co Div the Timken Company), G4Y17MILG3278A (Timken Co Div the Timken Company), G4Y17FS160 (Rbc Aircraft Products, Inc.) and 5 more.

What NSN replaces 3110-00-143-2992?

There are 7 known substitutes for 3110-00-143-2992: 2915-00-064-0560, 5120-00-247-0868, 6810-00-264-6633 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of G4Y17MILG3278A?

Key specifications for G4Y17MILG3278A: Groove Radius: 0.5310 INCHES NOMINAL IN; Outer Ring Width: 0.5630 INCHES NOMINAL IN; Lubrication Material: GREASE; Shield Quantity: 2. 16 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com