PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FB68-3 1-4Bearing,sleeve

Altra Industrial Motion Corp. · NSN 3120-00-827-7940 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-827-7940 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-827-7940. Primary manufacturer part number: FB68-3 1-4.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Material Document and Classification: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: OIL LUBRICATING LUBRICATION
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Oil Lubricating Lubrication construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-827-7940, 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 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-827-7940
Primary Part NumberFB68-3 1-4
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAltra Industrial Motion Corp.
StatusACTIVE
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Material Document and ClassificationMIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialOIL LUBRICATING LUBRICATION
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Flange Width0.0912 INCHES MINIMUM AND 0.0962 INCHES MAXIMUM IN
Flange Outside Diameter0.6850 INCHES MINIMUM AND 0.6900 INCHES MAXIMUM IN
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Body Outside Diameter0.5010 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter0.3760 INCHES MINIMUM AND 0.3770 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
3120-00-287-6470 INTERCHANGEABLE
Bearing,sleeve
3120-00-287-7480B5947 INTERCHANGEABLE
Bearing,sleeve
Dresser, Llc
3120-00-489-4279HT901-1 INTERCHANGEABLE
Bearing,washer,thrust
Chrysler Corp Amplex Div
3120-00-661-8500 INTERCHANGEABLE
Bearing,sleeve
3120-00-684-1460309-0115-000 INTERCHANGEABLE
Bearing,sleeve
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3120-00-855-3814 INTERCHANGEABLE
Bearing,sleeve
3120-00-892-3953BACB10D63 INTERCHANGEABLE
Bearing,sleeve
The Boeing Company Div Defense
3120-00-912-6382 INTERCHANGEABLE
Bearing,sleeve
3120-01-009-6773 INTERCHANGEABLE
Bearing,sleeve
Cross-Reference Index
Part NumberManufacturer
401-0148 Continental Electronics Corp (USA)
FB68-3-1-4 Altra Industrial Motion Corp. (USA)
FB68-3 1-4 PRIMARY Altra Industrial Motion Corp. (USA)
MIL-B-5687D Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
3120-00-287-6470INTERCHANGEABLE
BEARING,SLEEVE
3120-00-287-7480INTERCHANGEABLE
BEARING,SLEEVE
B5947
3120-00-489-4279INTERCHANGEABLE
BEARING,WASHER,THRUST
HT901-1
3120-00-661-8500INTERCHANGEABLE
BEARING,SLEEVE
3120-00-684-1460INTERCHANGEABLE
BEARING,SLEEVE
309-0115-000
3120-00-855-3814INTERCHANGEABLE
BEARING,SLEEVE
3120-00-892-3953INTERCHANGEABLE
BEARING,SLEEVE
BACB10D63
3120-00-912-6382INTERCHANGEABLE
BEARING,SLEEVE
3120-01-009-6773INTERCHANGEABLE
BEARING,SLEEVE

Frequently Asked Questions

What is NSN 3120-00-827-7940?

NSN 3120-00-827-7940 is a Bearing,sleeve, manufactured by Altra Industrial Motion Corp., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-827-7940?

NSN 3120-00-827-7940 has 4 cross-referenced part numbers: 401-0148 (Continental Electronics Corp), FB68-3-1-4 (Altra Industrial Motion Corp.), FB68-3 1-4 (Altra Industrial Motion Corp.), MIL-B-5687D (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 3120-00-827-7940?

There are 9 known substitutes for 3120-00-827-7940: 3120-00-287-6470, 3120-00-287-7480, 3120-00-489-4279 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of FB68-3 1-4?

Key specifications for FB68-3 1-4: Corner Shape: SQUARE INSIDE RIGHT CORNER; Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER; Material Document and Classification: MIL-B-5687,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Material: OIL LUBRICATING LUBRICATION. 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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