PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-C-39012/21Connector,receptacle,electrical

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5935-01-343-7125 · FSC 5935 · No Item Name Available
Verified by PartsTable
NSN 5935-01-343-7125 — this item is cataloged by the U.S. Government under National Stock Number 5935-01-343-7125. Primary manufacturer part number: MIL-C-39012/21.
Features
  • Connector,receptacle,electrical — FSC 5935
  • Overall Diameter: 0.508 INCHES MAXIMUM IN
  • 3 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Electrical interconnection
  • Signal interface mating
  • Quick-disconnect coupling
General Description

The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-343-7125, 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 1 verified specification, 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5935-01-343-7125
Primary Part NumberMIL-C-39012/21
Item NameConnector,receptacle,electrical
FSC / FSG5935 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Overall Diameter0.508 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5935-00-721-0003 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-835-0510 INTERCHANGEABLE
Connector,receptacle,electrical
5935-00-853-7596 INTERCHANGEABLE
Connector,receptacle,electrical
5935-01-437-0891 INTERCHANGEABLE
Connector,receptacle,electrical
Cross-Reference Index
Part NumberManufacturer
MIL-C-39012/21 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M39012/21-003 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-39012/21 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5935-00-721-0003INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-835-0510INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-00-853-7596INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5935-01-437-0891INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL

Frequently Asked Questions

What is NSN 5935-01-343-7125?

NSN 5935-01-343-7125 is a Connector,receptacle,electrical, 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 5935-01-343-7125?

NSN 5935-01-343-7125 has 3 cross-referenced part numbers: MIL-C-39012/21 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M39012/21-003 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-39012/21 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5935-01-343-7125?

There are 4 known substitutes for 5935-01-343-7125: 5935-00-721-0003, 5935-00-835-0510, 5935-00-853-7596 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-C-39012/21?

Key specifications for MIL-C-39012/21: Special Features: SERIES BNC,UNCABLED RECEPTACLE,FEMALE,JAM NUT MOUNTED,CLASS II; Part Name Assigned by Controlling Agency: CONNECTOR,RECEPTACLE,ELECTRICAL; Overall Diameter: 0.508 INCHES MAXIMUM IN. 3 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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