PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FB68-3Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-661-4282 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-661-4282 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-661-4282. Primary manufacturer part number: FB68-3.
Features
  • Bearing,sleeve — FSC 3120
  • Material: COPPER ALLOY OVERALL
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE OUTSIDE RIGHT CORNER
  • Material: LUBRICANT LUBRICATION
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
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 3120-00-661-4282, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Altra Industrial Motion Corp.. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 13 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN3120-00-661-4282
Primary Part NumberFB68-3
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusCANCELLED
MaterialCOPPER ALLOY OVERALL
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
MaterialLUBRICANT LUBRICATION
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Corner ShapeSQUARE INSIDE RIGHT CORNER
Flange Width0.0912 INCHES MINIMUM AND 0.0962 INCHES MAXIMUM IN
Flange Outside Diameter0.6825 INCHES MINIMUM AND 0.6925 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Body Outside Diameter0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Body Inside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5905-00-105-7768 INTERCHANGEABLE
Resistor,fixed,composition
5998-01-066-8617410018 INTERCHANGEABLE
Circuit Card Assembly
Telemechanics Inc
3120-01-464-6812A7B4-BF1212 INTERCHANGEABLE
Bushing,sleeve
Designatronics Incorporated Div Sterling Instruments Div
5950-01-508-3593410018 INTERCHANGEABLE
Transformer,power
Datron World Communications, Inc.
Cross-Reference Index
Part NumberManufacturer
35548FB-68-3 Altra Industrial Motion Corp. (USA)
FB68-3 PRIMARY Altra Industrial Motion Corp. (USA)
401-0155 Continental Electronics Corp (USA)
1052428-1 Us Army Aviation and Missile Command (USA)
821802G1 Superior Electric Holding Group Llc Div Specialty Product Technologies (USA)
410018 Cardion Inc (USA)
144035-1 Northrop Grumman Systems Corporation (USA)
410018 Aimtron Systems, Llc (USA)
732-06-035 Logetronics Corporation (USA)
714005-108 Capstan Ag Systems, Inc Dba Remex (USA)
25Z652D1 Morris Material Handling, Inc. (USA)
65C35459-5 San Antonio Air Logistics Center (USA)
F516-24 Keystone Carbon Co Inc (USA)
PF392-24 Powdercraft Corp (USA)
Related Parts
5905-00-105-7768INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5998-01-066-8617INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
410018
3120-01-464-6812INTERCHANGEABLE
BUSHING,SLEEVE
A7B4-BF1212
5950-01-508-3593INTERCHANGEABLE
TRANSFORMER,POWER
410018

Frequently Asked Questions

What is NSN 3120-00-661-4282?

NSN 3120-00-661-4282 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-661-4282?

NSN 3120-00-661-4282 has 14 cross-referenced part numbers: 35548FB-68-3 (Altra Industrial Motion Corp.), FB68-3 (Altra Industrial Motion Corp.), 401-0155 (Continental Electronics Corp), 1052428-1 (Us Army Aviation and Missile Command), 821802G1 (Superior Electric Holding Group Llc Div Specialty Product Technologies) and 9 more.

What NSN replaces 3120-00-661-4282?

There are 4 known substitutes for 3120-00-661-4282: 5905-00-105-7768, 5998-01-066-8617, 3120-01-464-6812 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FB68-3?

Key specifications for FB68-3: Material: COPPER ALLOY OVERALL; Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER; Corner Shape: SQUARE INSIDE LEFT CORNER; Corner Shape: SQUARE OUTSIDE RIGHT CORNER. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 3120-00-661-4282 still in active supply?

NSN 3120-00-661-4282 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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