PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40489Bearing Half,sleeve

Cummins Inc. · NSN 3120-00-179-6919 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-179-6919 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-179-6919. Primary manufacturer part number: 40489.
Features
  • Bearing Half,sleeve — FSC 3120
  • Material: OIL LUBRICATING LUBRICATION
  • Corner Shape: SQUARE ALL CORNERS
  • Distance From Centerline of Opening to Left End of Bearing: 0.6250 INCHES NOMINAL FIRST IN
  • Material: COPPER ALLOY INNER LAYER
  • Antirotation/lubrication Type and Quantity: 1 HOLE
  • Surface Treatment: TIN OVERALL
  • Material: STEEL OUTER LAYER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing Half,sleeve, cataloged under National Stock Number 3120-00-179-6919, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Cummins Inc.. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-179-6919
Primary Part Number40489
Item NameBearing Half,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
MaterialOIL LUBRICATING LUBRICATION
Corner ShapeSQUARE ALL CORNERS
Distance From Centerline of Opening to Left End of Bearing0.6250 INCHES NOMINAL FIRST IN
MaterialCOPPER ALLOY INNER LAYER
Antirotation/lubrication Type and Quantity1 HOLE
Surface TreatmentTIN OVERALL
MaterialSTEEL OUTER LAYER
Body Inside Diameter3.8740 INCHES MINIMUM AND 3.8750 INCHES MAXIMUM IN
Hole Diameter0.1875 INCHES NOMINAL FIRST IN
Body Outside Diameter4.1240 INCHES MINIMUM AND 4.1250 INCHES MAXIMUM IN
Style DesignatorHALF SLEEVE, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
3110-00-198-295940489 INTERCHANGEABLE
Bearing,ball,airframe
Eaton Aerospace, Llc Dba Jackson South
9540-00-596-1125 INTERCHANGEABLE
Beam,structural
4930-01-109-957740489 INTERCHANGEABLE
Plate,cover
Mcneil Ohio Corp
5305-01-420-6703 INTERCHANGEABLE
Screw,cap,hexagon Head
6665-01-539-827040489-SV INTERCHANGEABLE
Indicator,carbon Monoxide
Hdt Expeditionary Systems Inc
Cross-Reference Index
Part NumberManufacturer
A40489 Cummins Inc. (USA)
40489 PRIMARY Cummins Inc. (USA)
Related Parts
3110-00-198-2959INTERCHANGEABLE
BEARING,BALL,AIRFRAME
40489
9540-00-596-1125INTERCHANGEABLE
BEAM,STRUCTURAL
4930-01-109-9577INTERCHANGEABLE
PLATE,COVER
40489
5305-01-420-6703INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
6665-01-539-8270INTERCHANGEABLE
INDICATOR,CARBON MONOXIDE
40489-SV

Frequently Asked Questions

What is NSN 3120-00-179-6919?

NSN 3120-00-179-6919 is a Bearing Half,sleeve, manufactured by Cummins Inc., classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-179-6919?

NSN 3120-00-179-6919 has 2 cross-referenced part numbers: A40489 (Cummins Inc.), 40489 (Cummins Inc.).

What NSN replaces 3120-00-179-6919?

There are 5 known substitutes for 3120-00-179-6919: 3110-00-198-2959, 9540-00-596-1125, 4930-01-109-9577 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 40489?

Key specifications for 40489: Material: OIL LUBRICATING LUBRICATION; Corner Shape: SQUARE ALL CORNERS; Distance From Centerline of Opening to Left End of Bearing: 0.6250 INCHES NOMINAL FIRST IN; Material: COPPER ALLOY INNER LAYER. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-179-6919 still in active supply?

NSN 3120-00-179-6919 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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