PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M24308/21-9Backshell,electrical Connector

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5935-01-057-8357 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-057-8357 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-057-8357. Primary manufacturer part number: M24308/21-9.
Features
  • Backshell,electrical Connector — FSC 5935
  • Size Designation: 4
  • Material: STEEL
  • Surface Treatment: CADMIUM AND CHROMATE
  • Style Designator: HOOD TYPE W/ROUND CLAMP AND FLANGE
  • Cable Opening Diameter: 0.718 INCHES MAXIMUM IN
  • Cable Opening Quantity: 1
  • Test Data Document: 81349-MILC24308 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.).
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
  • Applications requiring Steel construction
General Description

The Backshell,electrical Connector, cataloged under National Stock Number 5935-01-057-8357, 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 Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5935-01-057-8357
Primary Part NumberM24308/21-9
Item NameBackshell,electrical Connector
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Size Designation4
MaterialSTEEL
Surface TreatmentCADMIUM AND CHROMATE
Style DesignatorHOOD TYPE W/ROUND CLAMP AND FLANGE
Cable Opening Diameter0.718 INCHES MAXIMUM IN
Cable Opening Quantity1
Test Data Document81349-MILC24308 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.).
Body Width0.329 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN
Mounting Facility Type and Quantity2 UNTHREADED HOLE(S)
Distance Between Mounting Facility Centers2.495 INCHES MINIMUM AND 2.505 INCHES MAXIMUM IN
Unthreaded Mounting Hole Diameter0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN
Specification/standard Data81349-MILC24308/21 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5935-00-397-9128 INTERCHANGEABLE
Backshell,electrical Connector
5935-00-576-9454 INTERCHANGEABLE
Backshell,electrical Connector
5935-00-603-6717 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-006-7901 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-016-1216 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-054-7471 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-058-0905 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-075-9094 INTERCHANGEABLE
Backshell,electrical Connector
5935-01-232-4766M85049/48-2-7F INTERCHANGEABLE
Backshell,electrical Connector
Sae International Dba Sae International
5935-01-233-0778 INTERCHANGEABLE
Backshell,electrical Connector
Cross-Reference Index
Part NumberManufacturer
M24308/21-9 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-C-24308/21 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5935-00-397-9128INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-00-576-9454INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-00-603-6717INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-006-7901INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-016-1216INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-054-7471INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-058-0905INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-075-9094INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-232-4766INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
M85049/48-2-7F
5935-01-233-0778INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
5935-01-240-3063INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
M85049/48-2-1
5935-01-262-0999INTERCHANGEABLE
BACKSHELL,ELECTRICAL CONNECTOR
M85049/48-2-9F

Frequently Asked Questions

What is NSN 5935-01-057-8357?

NSN 5935-01-057-8357 is a Backshell,electrical Connector, manufactured by Military Specifications Promulgated by Military Departments/agencies 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 5935-01-057-8357?

NSN 5935-01-057-8357 has 2 cross-referenced part numbers: M24308/21-9 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-C-24308/21 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5935-01-057-8357?

There are 12 known substitutes for 5935-01-057-8357: 5935-00-397-9128, 5935-00-576-9454, 5935-00-603-6717 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M24308/21-9?

Key specifications for M24308/21-9: Size Designation: 4; Material: STEEL; Surface Treatment: CADMIUM AND CHROMATE; Style Designator: HOOD TYPE W/ROUND CLAMP AND FLANGE. 15 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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