PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

343101Shield,expansion

The Lee Co Dba the Lee Co · NSN 5340-00-991-3872 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-00-991-3872 — this item is cataloged by the U.S. Government under National Stock Number 5340-00-991-3872. Primary manufacturer part number: 343101.
Features
  • Shield,expansion — FSC 5340
  • Features Provided: CLOSED END AND INSTALLATION SETTING TOOL
  • Material: ALUMINUM ALLOY 2024
  • Insert Type for Which Designed: MACHINE BOLT
  • Unit Quantity: 1
  • Thread Provision: UNTHREADED
  • Surface Treatment: ANODIZE
  • Style Designator: TWO PIECE MACHINE
Applications
  • Applications requiring Aluminum Alloy 2024 construction
General Description

The Shield,expansion, cataloged under National Stock Number 5340-00-991-3872, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Lee Co Dba the Lee Co. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-00-991-3872
Primary Part Number343101
Item NameShield,expansion
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerThe Lee Co Dba the Lee Co
StatusACTIVE
Features ProvidedCLOSED END AND INSTALLATION SETTING TOOL
MaterialALUMINUM ALLOY 2024
Insert Type for Which DesignedMACHINE BOLT
Unit Quantity1
Thread ProvisionUNTHREADED
Surface TreatmentANODIZE
Style DesignatorTWO PIECE MACHINE
Hole Accommodation Diameter0.342 INCHES MINIMUM AND 0.343 INCHES MAXIMUM IN
Material Document and ClassificationQQ-A-268, T4 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 2
5940-00-685-897710-507-2-01 INTERCHANGEABLE
Terminal,feedthru
Concord Electronics, Inc.
5961-01-012-9313343103 INTERCHANGEABLE
Transistor
Fluke Corp
Cross-Reference Index
Part NumberManufacturer
572-523-9106 Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix (USA)
343101 PRIMARY The Lee Co Dba the Lee Co (USA)
Related Parts
5940-00-685-8977INTERCHANGEABLE
TERMINAL,FEEDTHRU
10-507-2-01
5961-01-012-9313INTERCHANGEABLE
TRANSISTOR
343103

Frequently Asked Questions

What is NSN 5340-00-991-3872?

NSN 5340-00-991-3872 is a Shield,expansion, manufactured by The Lee Co Dba the Lee Co, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-00-991-3872?

NSN 5340-00-991-3872 has 2 cross-referenced part numbers: 572-523-9106 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix), 343101 (The Lee Co Dba the Lee Co).

What NSN replaces 5340-00-991-3872?

There are 2 known substitutes for 5340-00-991-3872: 5940-00-685-8977, 5961-01-012-9313. Verify interchangeability with system specifications before substitution.

What are the specifications of 343101?

Key specifications for 343101: Special Features: COLOR GREEN; Overall Length: 0.493 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN; Features Provided: CLOSED END AND INSTALLATION SETTING TOOL; Material: ALUMINUM ALLOY 2024. 11 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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