PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21C1539-202Cover,electrical Connector

General Electric Company · NSN 5935-00-660-3720 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-00-660-3720 — this item is cataloged by the U.S. Government under National Stock Number 5935-00-660-3720. Primary manufacturer part number: 21C1539-202.
Features
  • Cover,electrical Connector — FSC 5935
  • Thread Direction: RIGHT-HAND
  • Size Designation: 14
  • Test Data Document: 81349-MILC5015 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.).
  • Furnished Items: CHAIN
  • Thread Series Designator: UNEF
  • Specification/standard Data: 81349-MIL-C-5015 GOVERNMENT SPECIFICATION
  • Overall Diameter: 0.937 INCHES MAXIMUM IN
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Aluminum Alloy construction
General Description

The Cover,electrical Connector, cataloged under National Stock Number 5935-00-660-3720, 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 General Electric Company. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5935-00-660-3720
Primary Part Number21C1539-202
Item NameCover,electrical Connector
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerGeneral Electric Company
StatusCANCELLED
Thread DirectionRIGHT-HAND
Size Designation14
Test Data Document81349-MILC5015 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.).
Furnished ItemsCHAIN
Thread Series DesignatorUNEF
Specification/standard Data81349-MIL-C-5015 GOVERNMENT SPECIFICATION
Overall Diameter0.937 INCHES MAXIMUM IN
Nominal Thread Size0.875 INCHES IN
Nominal Thread Length0.844 INCHES IN
Style DesignatorEXTERNAL THREADS W/CHAIN OR ROPE
Mounting Facility Type and Quantity1 THREADED COUPLING
Body Height0.891 INCHES MAXIMUM IN
MaterialALUMINUM ALLOY
Thread Class2A A
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
5935-01-008-5203 INTERCHANGEABLE
Cover,electrical Connector
5935-01-175-8420MS25042-14DA INTERCHANGEABLE
Cover,electrical Connector
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
21C1539-202 General Electric Company (USA)
MS25042-14C Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILC5015 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
21C1709-116 General Electric Company (USA)
Related Parts
5935-01-008-5203INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
5935-01-175-8420INTERCHANGEABLE
COVER,ELECTRICAL CONNECTOR
MS25042-14DA

Frequently Asked Questions

What is NSN 5935-00-660-3720?

NSN 5935-00-660-3720 is a Cover,electrical Connector, manufactured by General Electric Company, classified under FSC 5935 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5935-00-660-3720?

NSN 5935-00-660-3720 has 4 cross-referenced part numbers: 21C1539-202 (General Electric Company), MS25042-14C (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILC5015 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 21C1709-116 (General Electric Company).

What NSN replaces 5935-00-660-3720?

There are 2 known substitutes for 5935-00-660-3720: 5935-01-008-5203, 5935-01-175-8420. Verify interchangeability with system specifications before substitution.

What are the specifications of 21C1539-202?

Key specifications for 21C1539-202: Thread Direction: RIGHT-HAND; Size Designation: 14; Test Data Document: 81349-MILC5015 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.).; Furnished Items: CHAIN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5935-00-660-3720 still in active supply?

NSN 5935-00-660-3720 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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