PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-B-5423Boot,dust and Moisture Seal

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5930-01-412-6919 · FSC 5930 · No Item Name Available
Verified by PartsTable
NSN 5930-01-412-6919 — this item is cataloged by the U.S. Government under National Stock Number 5930-01-412-6919. Primary manufacturer part number: MIL-B-5423.
Features
  • Boot,dust and Moisture Seal — FSC 5930
  • Style Designator: THRU-HOLE
  • Specification/standard Data: 81349--5423/09 GOVERNMENT SPECIFICATION
  • Material: RUBBER SILICONE INSULATOR
  • Test Data Document: 81349-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.).
  • Base Inside Diameter: 0.375 INCHES NOMINAL IN
  • Opening Inside Diameter: 0.250 INCHES NOMINAL IN
  • Criticality Code Justification: FEAT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Silicone Insulator construction
General Description

The Boot,dust and Moisture Seal, cataloged under National Stock Number 5930-01-412-6919, 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 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5930-01-412-6919
Primary Part NumberMIL-B-5423
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
Style DesignatorTHRU-HOLE
Specification/standard Data81349--5423/09 GOVERNMENT SPECIFICATION
MaterialRUBBER SILICONE INSULATOR
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.).
Base Inside Diameter0.375 INCHES NOMINAL IN
Opening Inside Diameter0.250 INCHES NOMINAL IN
Criticality Code JustificationFEAT
Width Across Flats0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-140-3241 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-402-1021 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-442-5701 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-491-8714 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-496-7492N9060X1/4 INTERCHANGEABLE
Boot,dust and Moisture Seal
Apm Hexseal Corp
5340-00-535-9720 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-539-7013 INTERCHANGEABLE
Boot,dust and Moisture Seal
5340-00-682-0577 INTERCHANGEABLE
Boot,dust and Moisture Seal
5340-00-755-3645 INTERCHANGEABLE
Boot,dust and Moisture Seal
5930-00-816-6119 INTERCHANGEABLE
Boot,dust and Moisture Seal
Cross-Reference Index
Part NumberManufacturer
MIL-B-5423 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-5423 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-5423/9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M5423/09-14 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
386D0100-71 Ems Development Corporation (USA)
Related Parts
5930-00-140-3241INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-402-1021INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-442-5701INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-491-8714INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-496-7492INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
N9060X1/4
5340-00-535-9720INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-539-7013INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5340-00-682-0577INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5340-00-755-3645INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-816-6119INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-823-0482INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL
5930-00-823-0573INTERCHANGEABLE
BOOT,DUST AND MOISTURE SEAL

Frequently Asked Questions

What is NSN 5930-01-412-6919?

NSN 5930-01-412-6919 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 5930-01-412-6919?

NSN 5930-01-412-6919 has 5 cross-referenced part numbers: MIL-B-5423 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-5423 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-5423/9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M5423/09-14 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 386D0100-71 (Ems Development Corporation).

What NSN replaces 5930-01-412-6919?

There are 12 known substitutes for 5930-01-412-6919: 5930-00-140-3241, 5930-00-402-1021, 5930-00-442-5701 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-B-5423?

Key specifications for MIL-B-5423: Style Designator: THRU-HOLE; Specification/standard Data: 81349--5423/09 GOVERNMENT SPECIFICATION; Material: RUBBER SILICONE INSULATOR; Test Data Document: 81349-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.).. 11 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com