PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-5423/1Boot,dust and Moisture Seal

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-00-644-0109 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-644-0109 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-644-0109. Primary manufacturer part number: MIL-DTL-5423/1.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Material: RUBBER SILICONE BODY
  • Thread Length: 0.176 INCHES NOMINAL IN
  • Thread Series: WHITWORTH
  • Base Thread Location: INTERNAL
  • Opening Inside Diameter: 0.125 INCHES NOMINAL IN
  • Mounting Method: INTEGRAL THREADED NUT
  • Nominal Thread Size: 0.469 INCHES 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 5930-00-644-0109, 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 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-644-0109
Primary Part NumberMIL-DTL-5423/1
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
MaterialRUBBER SILICONE BODY
Thread Length0.176 INCHES NOMINAL IN
Thread SeriesWHITWORTH
Base Thread LocationINTERNAL
Opening Inside Diameter0.125 INCHES NOMINAL IN
Mounting MethodINTEGRAL THREADED NUT
Nominal Thread Size0.469 INCHES IN
Mounting Device Quantity1
Dome Height0.791 INCHES NOMINAL IN
Specification/standard Data81349-MIL-DTL-5423/1 GOVERNMENT SPECIFICATION
Hazardous Locations/environmental ProtectionDUSTPROOF-NEMA TYPE 13 AND WATERTIGHT-NEMA TYPE 4
Style DesignatorCLOSED END
Material Thickness0.053 INCHES NOMINAL IN
Thread Class2B
Sealing MethodCOMPRESSION
Test Data Document81349-MIL-DTL-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.).
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5930-00-491-0643 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-578-25241N1030 INTERCHANGEABLE
Boot,dust and Moisture Seal
Apm Hexseal Corp
5930-00-644-0110 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-689-6786 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-690-4301 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-01-110-2916 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-5423/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5423/01-01GREEN Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PI1142-3A Bae Systems Information and Electronic Systems Integration Inc. (USA)
MILB5423-1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1030 Apm Hexseal Corp (USA)
Related Parts
5930-00-491-0643INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-578-2524INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
1N1030
5930-00-644-0110INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-689-6786INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-690-4301INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-01-110-2916INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5930-00-644-0109?

NSN 5930-00-644-0109 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 5930-00-644-0109?

NSN 5930-00-644-0109 has 5 cross-referenced part numbers: MIL-DTL-5423/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5423/01-01GREEN (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), PI1142-3A (Bae Systems Information and Electronic Systems Integration Inc.), MILB5423-1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1030 (Apm Hexseal Corp).

What NSN replaces 5930-00-644-0109?

There are 6 known substitutes for 5930-00-644-0109: 5930-00-491-0643, 5930-00-578-2524, 5930-00-644-0110 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-5423/1?

Key specifications for MIL-DTL-5423/1: Material: RUBBER SILICONE BODY; Thread Length: 0.176 INCHES NOMINAL IN; Thread Series: WHITWORTH; Base Thread Location: INTERNAL. 18 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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