PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-5423/11Boot,dust and Moisture Seal

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-00-489-1369 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-00-489-1369 — this item is cataloged by the U.S. Government under National Stock Number 5930-00-489-1369. Primary manufacturer part number: MIL-DTL-5423/11.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Thread Class: 2B
  • Width Across Flats: 0.375 INCHES NOMINAL IN
  • Mounting Device Quantity: 1
  • Hazardous Locations/environmental Protection: WATERTIGHT-NEMA TYPE 4
  • Nominal Thread Size: 0.250 INCHES IN
  • Style Designator: THRU-HOLE
  • Material: RUBBER SILICONE BODY
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 5930-00-489-1369, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-00-489-1369
Primary Part NumberMIL-DTL-5423/11
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
Thread Class2B
Width Across Flats0.375 INCHES NOMINAL IN
Mounting Device Quantity1
Hazardous Locations/environmental ProtectionWATERTIGHT-NEMA TYPE 4
Nominal Thread Size0.250 INCHES IN
Style DesignatorTHRU-HOLE
MaterialRUBBER SILICONE BODY
FSC Application DataSWITCH,TOGGLE
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 Quantity Per Inch40
Thread SeriesUNS
Sealing MethodCOMPRESSION
Opening Inside Diameter0.062 INCHES NOMINAL IN
Mounting MethodINTEGRAL THREADED NUT
Base Thread LocationINTERNAL
Base Height0.098 INCHES NOMINAL IN
Thread Length0.078 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5930-00-020-7934 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-5423/11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILB5423-11 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5423/11-01BLACK Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5930-00-020-7934INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5930-00-489-1369?

NSN 5930-00-489-1369 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 5930-00-489-1369?

NSN 5930-00-489-1369 has 3 cross-referenced part numbers: MIL-DTL-5423/11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILB5423-11 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5423/11-01BLACK (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5930-00-489-1369?

There is 1 known substitute for 5930-00-489-1369: 5930-00-020-7934. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-5423/11?

Key specifications for MIL-DTL-5423/11: Thread Class: 2B; Width Across Flats: 0.375 INCHES NOMINAL IN; Mounting Device Quantity: 1; Hazardous Locations/environmental Protection: WATERTIGHT-NEMA TYPE 4. 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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