PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56438Boot,dust and Moisture Seal

L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions · NSN 5340-01-431-3308 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-431-3308 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-431-3308. Primary manufacturer part number: 56438.
Features
  • Boot,dust and Moisture Seal — FSC 5340
  • 2 verified cross-references
  • Primary manufacturer: L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5340-01-431-3308, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions. 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. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5340-01-431-3308
Primary Part Number56438
Item NameBoot,dust and Moisture Seal
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerL3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Unit of IssueEA
Verified Substitutes 5
5960-00-284-655756-238 INTERCHANGEABLE
Shield,electron Tube
Lockheed Martin Corporation Div Rms - Mitchel Field
4320-00-408-9069ER20698-5 INTERCHANGEABLE
Carrier Assembly,pump
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
3040-00-600-2909SM-B-187441 INTERCHANGEABLE
Lever,remote Control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
3110-00-914-326256438 INTERCHANGEABLE
Roller,bearing
Derco Aerospace, Inc. Dba Derco Aerospace, Inc. a Lockheed Martin Company
1005-01-190-841756238 INTERCHANGEABLE
Pin
Eaton Aerospace, Llc Dba Jackson South
Cross-Reference Index
Part NumberManufacturer
56438 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
56238 L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions (USA)
Related Parts
5960-00-284-6557INTERCHANGEABLE
SHIELD,ELECTRON TUBE
56-238
4320-00-408-9069INTERCHANGEABLE
CARRIER ASSEMBLY,PUMP
ER20698-5
3040-00-600-2909INTERCHANGEABLE
LEVER,REMOTE CONTROL
SM-B-187441
3110-00-914-3262INTERCHANGEABLE
ROLLER,BEARING
56438
1005-01-190-8417INTERCHANGEABLE
PIN
56238

Frequently Asked Questions

What is NSN 5340-01-431-3308?

NSN 5340-01-431-3308 is a Boot,dust and Moisture Seal, manufactured by L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-431-3308?

NSN 5340-01-431-3308 has 2 cross-referenced part numbers: 56438 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions), 56238 (L3 Technologies, Inc. Dba L3 Rccs Div Ruggedized Command & Control Solutions).

What NSN replaces 5340-01-431-3308?

There are 5 known substitutes for 5340-01-431-3308: 5960-00-284-6557, 4320-00-408-9069, 3040-00-600-2909 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56438?

Key specifications for 56438: End Item Identification: LCU. 1 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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