Series IV Accessories


Eaton's MIL-DTL-38999 Series IV accessories extend the service lives of military and aerospace connectors and cable assemblies by providing protection from contaminant intrusion, electrical and mechanical damage, and repeated engagement cycles.

  • Plug and receptacle covers feature rugged chains constructed from passivated, stainless steel.
  • Dummy stowage receptacles protect contacts and mating mechanisms and can also be used as anchor points for unmated cable assemblies.
  • Connector Savers extend the service life of cables by isolating connectors from repeated engagement cycles.

For additional information, call Eaton customer service at 805-484-0543 or select the following links:


Series IV Compliant Accessories in Shell Sizes 9 to 33


An extensive array of finish classes and EMI options


Custom Accessory Solutions


Eaton's MIL-DTL-38999 Series IV connectors and accessories 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 MIL-DTL-38999 Series IV solutions.
  • 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.

Additional Accessories Information - Series IV Design Guide


Get your copy of the MIL-DTL-38999 Series IV Design Guide. This 56-page brochure contains detailed Breech-Lok connector selection and design-in information including:

  • Insert service ratings and arrangement drawings.
  • D38999 QPL part number to factory part-number conversions.
  • Comprehensive product specifications and mechanical drawings.
  • Assembly instructions and installation tool descriptions.

Use the links below to download a PDF or send an e-mail to request printed copies.