PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-233Bearing,sleeve

Dresser Industries Inc Leroi Div · NSN 3120-00-424-5514 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-424-5514 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-424-5514. Primary manufacturer part number: 21-233.
Features
  • Bearing,sleeve — FSC 3120
  • Lubricant Accommodation Style: GROOVED CLOSED BOTH ENDS AND GROOVED CIRCULAR
  • Style Designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
  • Surface Groove Location and Quantity: 2 INTERNAL AND 1 INTERNAL
  • Keyway Dimension: 0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM EXTERNAL KEYWAY DEPTH IN
  • Antirotation/lubrication Type and Quantity: 2 HOLE
  • Keyway Dimension: 0.2188 INCHES NOMINAL EXTERNAL KEYWAY WIDTH IN
  • Body Outside Diameter: 2.7965 INCHES MINIMUM AND 2.7975 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Tin Alloy Inner Layer construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-424-5514, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference 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: Active.

Technical Specifications
ParameterValue
NSN3120-00-424-5514
Primary Part Number21-233
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusACTIVE
Lubricant Accommodation StyleGROOVED CLOSED BOTH ENDS AND GROOVED CIRCULAR
Style DesignatorSEGMENTED, PLAIN, NO OUTSIDE FLANGES
Surface Groove Location and Quantity2 INTERNAL AND 1 INTERNAL
Keyway Dimension0.0450 INCHES MINIMUM AND 0.0550 INCHES MAXIMUM EXTERNAL KEYWAY DEPTH IN
Antirotation/lubrication Type and Quantity2 HOLE
Keyway Dimension0.2188 INCHES NOMINAL EXTERNAL KEYWAY WIDTH IN
Body Outside Diameter2.7965 INCHES MINIMUM AND 2.7975 INCHES MAXIMUM IN
MaterialTIN ALLOY INNER LAYER
Body Inside Diameter2.6265 INCHES MINIMUM AND 2.6275 INCHES MAXIMUM IN
Material Document and ClassificationASTM A576 ASSN STD SINGLE MATERIAL RESPONSE OUTER LAYER
Corner ShapeSQUARE ALL CORNERS
Hole Diameter0.3125 INCHES NOMINAL FIRST IN
Keyway Dimension0.2380 INCHES MINIMUM AND 0.2430 INCHES MAXIMUM EXTERNAL KEYWAY LENGTH IN
MaterialSTEEL OUTER LAYER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5330-00-012-158097787HA INTERCHANGEABLE
Seal,plain Encased
Navistar Intl Corp Truck Br Ohio Plant
4730-00-192-755821233 INTERCHANGEABLE
Bolt,fluid Passage
Eaton Aerospace Llc
5110-00-260-1665 INTERCHANGEABLE
Reamer,hand
5330-01-146-7173 INTERCHANGEABLE
Gasket
5310-01-240-062321233 INTERCHANGEABLE
Nut,special
Dresser, Llc
Cross-Reference Index
Part NumberManufacturer
21-233 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
5330-00-012-1580INTERCHANGEABLE
SEAL,PLAIN ENCASED
97787HA
4730-00-192-7558INTERCHANGEABLE
BOLT,FLUID PASSAGE
21233
5110-00-260-1665INTERCHANGEABLE
REAMER,HAND
5330-01-146-7173INTERCHANGEABLE
GASKET
5310-01-240-0623INTERCHANGEABLE
NUT,SPECIAL
21233

Frequently Asked Questions

What is NSN 3120-00-424-5514?

NSN 3120-00-424-5514 is a Bearing,sleeve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-424-5514?

NSN 3120-00-424-5514 has 1 cross-referenced part number: 21-233 (Dresser Industries Inc Leroi Div).

What NSN replaces 3120-00-424-5514?

There are 5 known substitutes for 3120-00-424-5514: 5330-00-012-1580, 4730-00-192-7558, 5110-00-260-1665 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21-233?

Key specifications for 21-233: Overall Length: 2.9995 INCHES MINIMUM AND 3.0005 INCHES MAXIMUM IN; Lubricant Accommodation Style: GROOVED CLOSED BOTH ENDS AND GROOVED CIRCULAR; Style Designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES; Surface Groove Location and Quantity: 2 INTERNAL AND 1 INTERNAL. 15 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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