PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS3187-4-2Plug,end Seal,electrical Connect

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 5935-01-015-2078 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-015-2078 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-015-2078. Primary manufacturer part number: MS3187-4-2.
Features
  • Plug,end Seal,electrical Connect — FSC 5935
  • Body Diameter: 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
  • Test Data Document: 81349-MILC83723 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.).
  • Specification/standard Data: 81349-MILC83723 GOVERNMENT SPECIFICATION
  • Material: PLASTIC
  • Size Designation: 4
  • Overall Diameter: 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
  • Style Designator: STRAIGHT SHAPE SINGLE BOSS
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Plastic construction
General Description

The Plug,end Seal,electrical Connect, cataloged under National Stock Number 5935-01-015-2078, is classified within Federal Supply Class 5935 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN5935-01-015-2078
Primary Part NumberMS3187-4-2
Item NamePlug,end Seal,electrical Connect
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Body Diameter0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN
Test Data Document81349-MILC83723 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.).
Specification/standard Data81349-MILC83723 GOVERNMENT SPECIFICATION
MaterialPLASTIC
Size Designation4
Overall Diameter0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM IN
Style DesignatorSTRAIGHT SHAPE SINGLE BOSS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5935-00-123-5367 INTERCHANGEABLE
Plug,end Seal,electrical Connect
5935-01-577-3543 INTERCHANGEABLE
Plug,end Seal,electrical Connect
Cross-Reference Index
Part NumberManufacturer
MS3187-4-2 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS27488A4 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-83723-28 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M83723/28-4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5935-00-123-5367INTERCHANGEABLE
PLUG,END SEAL,ELECTRICAL CONNECT
5935-01-577-3543INTERCHANGEABLE
PLUG,END SEAL,ELECTRICAL CONNECT

Frequently Asked Questions

What is NSN 5935-01-015-2078?

NSN 5935-01-015-2078 is a Plug,end Seal,electrical Connect, manufactured by Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5935 (No Item Name Available). Status: active.

What are the part numbers for NSN 5935-01-015-2078?

NSN 5935-01-015-2078 has 4 cross-referenced part numbers: MS3187-4-2 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS27488A4 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-83723-28 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M83723/28-4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5935-01-015-2078?

There are 2 known substitutes for 5935-01-015-2078: 5935-00-123-5367, 5935-01-577-3543. Verify interchangeability with system specifications before substitution.

What are the specifications of MS3187-4-2?

Key specifications for MS3187-4-2: Body Diameter: 0.300 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; Test Data Document: 81349-MILC83723 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.).; Specification/standard Data: 81349-MILC83723 GOVERNMENT SPECIFICATION; Material: PLASTIC. 8 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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