PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

87039X1225MILG3278Bearing,ball,annular

General Motors Corp · NSN 3110-00-293-9347 · FSC 3110 · No Item Name Available
Verified by PartsTable
NSN 3110-00-293-9347 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-293-9347. Primary manufacturer part number: 87039X1225MILG3278.
Features
  • Bearing,ball,annular — FSC 3110
  • Material: WOOL SEAL
  • Inner Ring Width: 0.3860 INCHES NOMINAL IN
  • Bore Shape: STRAIGHT
  • Internal Fit-Up Designation: STANDARD
  • Outer Ring Width: 0.3150 INCHES NOMINAL IN
  • Load Direction: RADIAL
  • Bearing Seal Type: LABYRINTH
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Wool Seal construction
General Description

The Bearing,ball,annular, cataloged under National Stock Number 3110-00-293-9347, 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 22 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3110-00-293-9347
Primary Part Number87039X1225MILG3278
Item NameBearing,ball,annular
FSC / FSG3110 / 31 — No Item Name Available
ManufacturerGeneral Motors Corp
StatusACTIVE
MaterialWOOL SEAL
Inner Ring Width0.3860 INCHES NOMINAL IN
Bore ShapeSTRAIGHT
Internal Fit-Up DesignationSTANDARD
Outer Ring Width0.3150 INCHES NOMINAL IN
Load DirectionRADIAL
Bearing Seal TypeLABYRINTH
Lubrication MaterialGREASE
Standard Tolerance DesignationABEC NO.1
Retainer Fabrication MethodPRESSED
Seal Quantity1
Surface FinishGROUND
Lubrication Material Document and ClassificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
Shield Quantity1
MaterialSTEEL INNER RING
MaterialSTEEL OUTER RING
MaterialSTEEL RETAINER
MaterialSTEEL SHIELD
Style DesignatorNON-LOADING GROOVE, NON-SEPARABLE
Overall Outside Diameter26.00 MILLIMETERS NOMINAL MM
MaterialSTEEL BALL
Bore Diameter9.00 MILLIMETERS NOMINAL MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-156-341687039X1225MILG3278 INTERCHANGEABLE
Bearing,ball,annular
General Motors Corp
Cross-Reference Index
Part NumberManufacturer
87039X1225MILG3278 General Motors Corp (USA)
87039X1225MILG3278 General Motors Corp Delco Moraine Ndh Div (USA)
39FSFB106A023A75C0000L Skf Usa Inc. (USA)
R87039XR1MILG3278 General Motors Llc Dba General Motors Llc (USA)
R87039XR1MILG3278 General Motors Corp Delco Moraine Ndh Div (USA)
R87039XR1MILG3278 General Motors Corp (USA)
87039X1MILG3278 General Motors Corp Delco Moraine Ndh Div (USA)
Related Parts
3110-00-156-3416INTERCHANGEABLE
BEARING,BALL,ANNULAR
87039X1225MILG3278

Frequently Asked Questions

What is NSN 3110-00-293-9347?

NSN 3110-00-293-9347 is a Bearing,ball,annular, manufactured by General Motors Corp, classified under FSC 3110 (No Item Name Available). Status: active.

What are the part numbers for NSN 3110-00-293-9347?

NSN 3110-00-293-9347 has 7 cross-referenced part numbers: 87039X1225MILG3278 (General Motors Corp), 87039X1225MILG3278 (General Motors Corp Delco Moraine Ndh Div), 39FSFB106A023A75C0000L (Skf Usa Inc.), R87039XR1MILG3278 (General Motors Llc Dba General Motors Llc), R87039XR1MILG3278 (General Motors Corp Delco Moraine Ndh Div) and 2 more.

What NSN replaces 3110-00-293-9347?

There is 1 known substitute for 3110-00-293-9347: 3110-00-156-3416. Verify interchangeability with system specifications before substitution.

What are the specifications of 87039X1225MILG3278?

Key specifications for 87039X1225MILG3278: Material: WOOL SEAL; Inner Ring Width: 0.3860 INCHES NOMINAL IN; Bore Shape: STRAIGHT; Internal Fit-Up Designation: STANDARD. 23 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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