PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B3243Bearing,sleeve

Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture · NSN 3120-00-612-2830 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-612-2830 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-612-2830. Primary manufacturer part number: B3243.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Hole Diameter: 0.1875 INCHES NOMINAL FIRST IN
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Material: COPPER ALLOY OVERALL
  • Material Document and Classification: MIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Body Outside Diameter: 1.8514 INCHES MINIMUM AND 1.8524 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-612-2830, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-612-2830
Primary Part NumberB3243
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture
StatusACTIVE
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Hole Diameter0.1875 INCHES NOMINAL FIRST IN
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
MaterialCOPPER ALLOY OVERALL
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Body Outside Diameter1.8514 INCHES MINIMUM AND 1.8524 INCHES MAXIMUM IN
Corner ShapeSQUARE INSIDE LEFT CORNER
Flange Outside Diameter2.0000 INCHES NOMINAL IN
Antirotation/lubrication Type and Quantity8 HOLE
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Lubricant Accommodation StyleGROOVED OPEN BOTH ENDS
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
MaterialOIL LUBRICATING LUBRICATION
Flange Width0.1250 INCHES NOMINAL IN
Body Inside Diameter1.2500 INCHES MINIMUM AND 1.2510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
3040-00-909-8177180028 INTERCHANGEABLE
Lever,manual Control
Telemechanics Inc
6515-01-420-5264 INTERCHANGEABLE
Tube,tracheal
Cross-Reference Index
Part NumberManufacturer
B3243 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
T180028 Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
T180028 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
180028 Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture (USA)
B3243 Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand (USA)
Related Parts
3040-00-909-8177INTERCHANGEABLE
LEVER,MANUAL CONTROL
180028
6515-01-420-5264INTERCHANGEABLE
TUBE,TRACHEAL

Frequently Asked Questions

What is NSN 3120-00-612-2830?

NSN 3120-00-612-2830 is a Bearing,sleeve, manufactured by Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-612-2830?

NSN 3120-00-612-2830 has 5 cross-referenced part numbers: B3243 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), T180028 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), T180028 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand), 180028 (Dresser Rand Co Terry Corp Steam Turbine Motor and Generator Co a Joint Venture), B3243 (Siemens Government Technologies, Inc. Dba Sgt Dresser-Rand Div Sgt Dresser-Rand).

What NSN replaces 3120-00-612-2830?

There are 2 known substitutes for 3120-00-612-2830: 3040-00-909-8177, 6515-01-420-5264. Verify interchangeability with system specifications before substitution.

What are the specifications of B3243?

Key specifications for B3243: Corner Shape: SQUARE OUTSIDE LEFT CORNER; Hole Diameter: 0.1875 INCHES NOMINAL FIRST IN; Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 18 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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