PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

212609Bearing,sleeve

Cummins Inc. · NSN 3120-01-087-2539 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-087-2539 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-087-2539. Primary manufacturer part number: 212609.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.6860 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Keyway Dimension: 0.0250 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM INTERNAL KEYWAY DEPTH IN
  • Slot Width: 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM FIRST IN
  • Flange Outside Diameter: 0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
  • Keyway Dimension: 0.0500 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM INTERNAL KEYWAY WIDTH IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-087-2539, 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 19 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-01-087-2539
Primary Part Number212609
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCummins Inc.
StatusCANCELLED
Body Outside Diameter0.6860 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Keyway Dimension0.0250 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM INTERNAL KEYWAY DEPTH IN
Slot Width0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM FIRST IN
Flange Outside Diameter0.7350 INCHES MINIMUM AND 0.7400 INCHES MAXIMUM IN
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Keyway Dimension0.0500 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM INTERNAL KEYWAY WIDTH IN
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MaterialOIL LUBRICATING LUBRICATION
Keyway Dimension1.5550 INCHES MINIMUM AND 1.5650 INCHES MAXIMUM INTERNAL KEYWAY LENGTH IN
MaterialSTEEL OVERALL
Antirotation/lubrication Type and Quantity2 SLOT
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Flange Width0.1000 INCHES NOMINAL IN
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Slot Length0.1615 INCHES NOMINAL FIRST IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Body Inside Diameter0.3963 INCHES MINIMUM AND 0.3970 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
2915-00-255-1437212609 INTERCHANGEABLE
Parts Kit,pump Depot Overhaul
Eaton Corp Dba Eaton Aerospace Jackson
5360-00-597-0781212609 INTERCHANGEABLE
Spring,helical,compression
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5340-01-357-8178212609 INTERCHANGEABLE
Plate,mounting
Naval Air Warfare Center Aircraft Division Joint Base Jbmdl
Cross-Reference Index
Part NumberManufacturer
212609 PRIMARY Cummins Inc. (USA)
212609 Cummins Enginelimited (GBR)
Related Parts
2915-00-255-1437INTERCHANGEABLE
PARTS KIT,PUMP DEPOT OVERHAUL
212609
5360-00-597-0781INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
212609
5340-01-357-8178INTERCHANGEABLE
PLATE,MOUNTING
212609

Frequently Asked Questions

What is NSN 3120-01-087-2539?

NSN 3120-01-087-2539 is a Bearing,sleeve, manufactured by Cummins Inc., classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-01-087-2539?

NSN 3120-01-087-2539 has 2 cross-referenced part numbers: 212609 (Cummins Inc.), 212609 (Cummins Enginelimited).

What NSN replaces 3120-01-087-2539?

There are 3 known substitutes for 3120-01-087-2539: 2915-00-255-1437, 5360-00-597-0781, 5340-01-357-8178. Verify interchangeability with system specifications before substitution.

What are the specifications of 212609?

Key specifications for 212609: Body Outside Diameter: 0.6860 INCHES MINIMUM AND 0.6870 INCHES MAXIMUM IN; Corner Shape: SQUARE OUTSIDE LEFT CORNER; Keyway Dimension: 0.0250 INCHES MINIMUM AND 0.0350 INCHES MAXIMUM INTERNAL KEYWAY DEPTH IN; Slot Width: 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM FIRST IN. 20 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-01-087-2539 still in active supply?

NSN 3120-01-087-2539 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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