PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-5423/10Boot,dust and Moisture Seal

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-00-893-1928 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-893-1928 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-893-1928. Primary manufacturer part number: MIL-DTL-5423/10.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Base Thread Location: INTERNAL
  • Material Thickness: 0.039 INCHES NOMINAL IN
  • Mounting Device Quantity: 1
  • Nominal Thread Size: 0.250 INCHES IN
  • Mounting Method: INTEGRAL THREADED NUT
  • Style Designator: CLOSED END
  • Dome Height: 0.203 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Body construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-00-893-1928, is classified within Federal Supply Class 5930 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-893-1928
Primary Part NumberMIL-DTL-5423/10
Item NameBoot,dust and Moisture Seal
FSC / FSG5930 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Base Thread LocationINTERNAL
Material Thickness0.039 INCHES NOMINAL IN
Mounting Device Quantity1
Nominal Thread Size0.250 INCHES IN
Mounting MethodINTEGRAL THREADED NUT
Style DesignatorCLOSED END
Dome Height0.203 INCHES NOMINAL IN
Opening Inside Diameter0.187 INCHES NOMINAL IN
Width Across Flats0.375 INCHES NOMINAL IN
MaterialRUBBER SILICONE BODY
Thread Length0.072 INCHES NOMINAL IN
Test Data Document81349-MIL-B-5423 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Thread Class2B
Thread Quantity Per Inch40
Hazardous Locations/environmental ProtectionDUSTTIGHT-NEMA TYPE 5 AND WATERTIGHT-NEMA TYPE 4
Thread SeriesUNS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5930-00-687-0948 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-950-4541 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-5423/10 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
0740648 General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE)
M5423/10-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-B-5423/10 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5423/10-02 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
SM-B-50539S Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
1654W13P001 Ametek Inc Div Aerospace and Defense (USA)
N5040R 2 Apm Hexseal Corp (USA)
Related Parts
5930-00-687-0948INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-950-4541INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5930-00-893-1928?

NSN 5930-00-893-1928 is a Boot,dust and Moisture Seal, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5930 (No Item Name Available). Status: active.

What are the part numbers for NSN 5930-00-893-1928?

NSN 5930-00-893-1928 has 8 cross-referenced part numbers: MIL-DTL-5423/10 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 0740648 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), M5423/10-2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-B-5423/10 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5423/10-02 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5930-00-893-1928?

There are 2 known substitutes for 5930-00-893-1928: 5930-00-687-0948, 5930-00-950-4541. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-5423/10?

Key specifications for MIL-DTL-5423/10: Base Thread Location: INTERNAL; Material Thickness: 0.039 INCHES NOMINAL IN; Mounting Device Quantity: 1; Nominal Thread Size: 0.250 INCHES IN. 17 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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