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MIL-DTL-38999 series III

Eaton's heritage-proven technologies and design platforms can be leveraged to accelerate development of custom MIL-DTL-38999 Series III solutions for a wide range of military and aerospace connector requirements.

Eaton's MIL-DTL-38999 custom-solution capabilities include application-specific contacts, shells, environmental performance, and the modifications described below. This extensive array of capabilities augments Eaton's broad range of standard MIL-DTL-38999 Series III connectors.

MIL-DTL-38999 series III

Core features


Single and redundant-release lanyard plugs

The redundant-release lanyard connector depicted to the left supports low-pull force, off-axis releases; incorporates MIL-DTL-38999 Series III complaint coupling threads; and can be utilized for a wide range of critical applications including weapons release and manned spaceflight.

Redundantly-released connectors are also available with any combination of mechanical and electrical primary and secondary actuation mechanisms.

For additional dual-released-lanyard and redundant electrically/mechanically released connectors information, register for Eaton's export-controlled Space and Launch Solutions Brochure by e-mailing customer service:

MIL-DTL-38999/36 lanyard-released connectors are also available as modified solutions; please contact Eaton to discuss your application requirements.

Custom hermetic and filtered receptacles

Eaton's MIL-DTL-38999 hermetic and filtered receptacles can be quickly customized to meet a broad array of military and aerospace connector requirements. Quick-turn modifications include:

  • Special insert/shell arrangements and materials.
  • Space-rated solutions including NASA Thread Coupling (NATC).
  • Custom connector/cable assemblies and wiring harnesses.
  • Filters optimized for application-specific frequency, voltage, and impedance requirements.
  • Operation in extreme environments including extended temperature ranges, shock and vibration, radiation, EMI/RFI, corrosive contaminants, vacuum, and pressures to 20,000 PSI.

Custom space-rated connectors

Eaton's extensive array of space-rated connectors in MIL-DTL-38999 derived, miniaturized, and custom form factors includes heritage-proven G&H TechnologyTM solutions. Additional features and design options include:

  • Ergonomic Wing-Lok configurations (depicted to the left) facilitate rapid engagements even when wearing bulky space gloves. 
  • Low-imparted shock connectors compensate for mating/demating misalignments.
  • Extreme-environment capabilities include cryogenic to 5000 degrees F. temperature ranges.
  • EMI/RFI filtered, hermetic, and NASA SSQ 21635 NATC connectors.

For additional space-rated custom connector information, please visit our space and launch solutions web pages.

Custom cable assemblies and wiring harnesses

Military and aerospace cable assembly and wiring harness capabilities include overmolded, coaxial, flat ribbon, and fiber optic for power, data, and hybrid applications.

Solution-development expertise includes operation in extreme environments including extended temperature ranges, shock and vibration, radiation, EMI/RFI, corrosive contaminants, vacuum, and pressures to 20,000 PSI.

In addition to turnkey design and manufacturing for new projects, build-to-print services for production-ready designs are also available.

Visit the custom military cable and wiring harness web pages

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