PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3120-1Bearing,sleeve

Defense Logistics Agency Dba Defense Supply Center Philadelphia · NSN 3120-00-661-3613 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-3613 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-3613. Primary manufacturer part number: 3120-1.
Features
  • Bearing,sleeve — FSC 3120
  • Surface Groove Location and Quantity: 4 INTERNAL
  • Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
  • Material: COPPER ALLOY 932 OVERALL
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Surface Finish: 125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
  • Style Designator: SOLID, EXTERNAL FLANGE ONE END
  • Surface Finish: 125.0 MICROINCHES RIGHT END SURFACE OF BODY
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy 932 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-661-3613, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Defense Logistics Agency Dba Defense Supply Center Philadelphia. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN3120-00-661-3613
Primary Part Number3120-1
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDefense Logistics Agency Dba Defense Supply Center Philadelphia
StatusACTIVE
Surface Groove Location and Quantity4 INTERNAL
Surface Finish125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
MaterialCOPPER ALLOY 932 OVERALL
Corner ShapeSQUARE INSIDE RIGHT CORNER
Surface Finish125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF FLANGE
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Surface Finish125.0 MICROINCHES RIGHT END SURFACE OF BODY
Corner ShapeSQUARE INSIDE LEFT CORNER
Surface Finish125.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Material Document and ClassificationMIL-B-12621 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Flange Width0.1875 INCHES NOMINAL IN
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Body Inside Diameter1.5080 INCHES MINIMUM AND 1.5100 INCHES MAXIMUM IN
Body Outside Diameter2.0010 INCHES MINIMUM AND 2.0020 INCHES MAXIMUM IN
Surface Finish125.0 MICROINCHES LEFT END SURFACE OF BODY AND FLANGE
Flange Outside Diameter2.7400 INCHES MINIMUM AND 2.7600 INCHES MAXIMUM IN
Lubricant Accommodation StyleGROOVED OPEN BOTH ENDS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3120-00-836-04693120-1 INTERCHANGEABLE
Bearing,sleeve
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5935-00-958-492531201 INTERCHANGEABLE
Adapter,connector
Itt Cannon Rf Products
6515-01-102-9633 INTERCHANGEABLE
Eggers Plate
5310-01-130-059931201 INTERCHANGEABLE
Nut,plain,hexagon
Barnes Group Inc. Dba Barnes Distribution
5998-01-435-109731201 INTERCHANGEABLE
Circuit Card Assembly
Ontic Engineering and Manufacturing, Inc.
Cross-Reference Index
Part NumberManufacturer
3120-1 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
3120-2 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
A267-2347 Almon Johnson Ltd (USA)
Related Parts
3120-00-836-0469INTERCHANGEABLE
BEARING,SLEEVE
3120-1
5935-00-958-4925INTERCHANGEABLE
ADAPTER,CONNECTOR
31201
6515-01-102-9633INTERCHANGEABLE
EGGERS PLATE
5310-01-130-0599INTERCHANGEABLE
NUT,PLAIN,HEXAGON
31201
5998-01-435-1097INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
31201

Frequently Asked Questions

What is NSN 3120-00-661-3613?

NSN 3120-00-661-3613 is a Bearing,sleeve, manufactured by Defense Logistics Agency Dba Defense Supply Center Philadelphia, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-661-3613?

NSN 3120-00-661-3613 has 3 cross-referenced part numbers: 3120-1 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), 3120-2 (Defense Logistics Agency Dba Defense Supply Center Philadelphia), A267-2347 (Almon Johnson Ltd).

What NSN replaces 3120-00-661-3613?

There are 5 known substitutes for 3120-00-661-3613: 3120-00-836-0469, 5935-00-958-4925, 6515-01-102-9633 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3120-1?

Key specifications for 3120-1: Surface Groove Location and Quantity: 4 INTERNAL; Surface Finish: 125.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY; Material: COPPER ALLOY 932 OVERALL; Corner Shape: SQUARE INSIDE RIGHT CORNER. 21 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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