PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

40387Bearing,sleeve

Lake Shore Systems, Inc. · NSN 3120-01-271-8339 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-01-271-8339 — this item is cataloged by the U.S. Government under National Stock Number 3120-01-271-8339. Primary manufacturer part number: 40387.
Features
  • Bearing,sleeve — FSC 3120
  • 2 verified cross-references
  • Primary manufacturer: Lake Shore Systems, Inc.
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-01-271-8339, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Lake Shore Systems, Inc.. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBearing,sleeve
FSC / FSG3120 — No Item Name Available (FSG 31)
ManufacturersLake Shore Systems, Inc. (CAGE 34712)
Technical Specifications
ParameterValue
NSN3120-01-271-8339
Primary Part Number40387
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerLake Shore Systems, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5360-00-044-286240-387 INTERCHANGEABLE
Spring,helical,compression
Goodrich Corporation Div Collins Aerospace, Landing Systems (wheels & Brakes)
5340-00-170-485540387 INTERCHANGEABLE
Strap,retaining
L3harris Technologies, Inc. Dba Harris Corporation
3040-00-314-14134501-275 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
5360-00-598-7622 INTERCHANGEABLE
Spring,helical,compression
5940-01-491-856640387 INTERCHANGEABLE
Terminal,feedthru
Hamilton Sundstrand Corporation
Cross-Reference Index
Part NumberManufacturer
3724-1 PIECE 25 Lake Shore Systems, Inc. (USA)
40387 PRIMARY Lake Shore Systems, Inc. (USA)
Related Parts
5360-00-044-2862INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
40-387
5340-00-170-4855INTERCHANGEABLE
STRAP,RETAINING
40387
3040-00-314-1413INTERCHANGEABLE
CONNECTING LINK,RIGID
4501-275
5360-00-598-7622INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5940-01-491-8566INTERCHANGEABLE
TERMINAL,FEEDTHRU
40387

Frequently Asked Questions

What is NSN 3120-01-271-8339?

NSN 3120-01-271-8339 is a Bearing,sleeve, manufactured by Lake Shore Systems, Inc., classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-01-271-8339?

NSN 3120-01-271-8339 has 2 cross-referenced part numbers: 3724-1 PIECE 25 (Lake Shore Systems, Inc.), 40387 (Lake Shore Systems, Inc.).

What NSN replaces 3120-01-271-8339?

There are 5 known substitutes for 3120-01-271-8339: 5360-00-044-2862, 5340-00-170-4855, 3040-00-314-1413 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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