PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7CBearing,sleeve

Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions · NSN 3120-00-125-4668 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-125-4668 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-125-4668. Primary manufacturer part number: 7C.
Features
  • Bearing,sleeve — FSC 3120
  • Antirotation/lubrication Type and Quantity: 4 HOLE
  • Body Outside Diameter: 3.6880 INCHES NOMINAL IN
  • Corner Shape: SQUARE ALL CORNERS
  • Material: STEEL OVERALL
  • Body Inside Diameter: 3.5000 INCHES NOMINAL IN
  • Style Designator: SEGMENTED, PLAIN, NO OUTSIDE FLANGES
  • 4 verified cross-references
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Steel Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-125-4668, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-125-4668
Primary Part Number7C
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerCurtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions
StatusACTIVE
Antirotation/lubrication Type and Quantity4 HOLE
Body Outside Diameter3.6880 INCHES NOMINAL IN
Corner ShapeSQUARE ALL CORNERS
MaterialSTEEL OVERALL
Body Inside Diameter3.5000 INCHES NOMINAL IN
Style DesignatorSEGMENTED, PLAIN, NO OUTSIDE FLANGES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6850-00-188-9868 INTERCHANGEABLE
Magnetic Inspection Compound
6850-00-543-7674 INTERCHANGEABLE
Magnetic Inspection Compound
6350-00-901-9788 INTERCHANGEABLE
Buzzer
3426-01-243-059511901150 INTERCHANGEABLE
Bag,dipping-Plating
Sifco Applied Surface Concepts, Llc
5330-01-253-3772 INTERCHANGEABLE
Packing Assembly Kit,stuffing Tu
1680-01-538-83973U457-60S907C-00 INTERCHANGEABLE
Plug,armor Panel,aircraft
Point Blank Enterprises, Inc. Dba the Protective Group Div the Protective Group, a Point Blank Company
6625-01-610-3790 INTERCHANGEABLE
Detector,radio Frequency Interfe
Cross-Reference Index
Part NumberManufacturer
7C Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions (USA)
7C Dresser-Rand Co Worthington Compressor Opn a Joint Venture (USA)
7C PRIMARY Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA)
7C Siemens Energy, Inc. Dba Dresser-Rand (USA)
Related Parts
6850-00-188-9868INTERCHANGEABLE
MAGNETIC INSPECTION COMPOUND
6850-00-543-7674INTERCHANGEABLE
MAGNETIC INSPECTION COMPOUND
6350-00-901-9788INTERCHANGEABLE
BUZZER
3426-01-243-0595INTERCHANGEABLE
BAG,DIPPING-PLATING
11901150
5330-01-253-3772INTERCHANGEABLE
PACKING ASSEMBLY KIT,STUFFING TU
1680-01-538-8397INTERCHANGEABLE
PLUG,ARMOR PANEL,AIRCRAFT
3U457-60S907C-00
6625-01-610-3790INTERCHANGEABLE
DETECTOR,RADIO FREQUENCY INTERFE

Frequently Asked Questions

What is NSN 3120-00-125-4668?

NSN 3120-00-125-4668 is a Bearing,sleeve, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-125-4668?

NSN 3120-00-125-4668 has 4 cross-referenced part numbers: 7C (Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions), 7C (Dresser-Rand Co Worthington Compressor Opn a Joint Venture), 7C (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 7C (Siemens Energy, Inc. Dba Dresser-Rand).

What NSN replaces 3120-00-125-4668?

There are 7 known substitutes for 3120-00-125-4668: 6850-00-188-9868, 6850-00-543-7674, 6350-00-901-9788 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7C?

Key specifications for 7C: Antirotation/lubrication Type and Quantity: 4 HOLE; Body Outside Diameter: 3.6880 INCHES NOMINAL IN; Corner Shape: SQUARE ALL CORNERS; Material: STEEL OVERALL. 7 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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