Active Electronics

38999 Reduced Flange Jam Nut Receptacle

Where small dimensions & lower weight are critical.

Thanks to its high level of expertise on MIL-DTL-38999 SERIES I, II & III & EN3645 connectors, Amphenol Socapex is the industry leader in D38999 circular connectors.  Offering QPL MIL-DTL-38999 and EN3645 qualified connectors with a large range of features including 38999 Rack & Panel, 38999 Miniature, 38999 Reduced Flange, 38999 Stand-off, 38999 Integrated Backshell & 38999 Power, Amphenol Socapex can answer all your needs through its line of reliable & qualitative products. Our 38999 connectors are available in Aluminum, Stainless Steel, Marine Bronze or Composite material with ROHS-compliant plating available in Black-Zinc Nickel and more. While the qualified Mil-Spec versions offer you a number of features, our customizable options are endless. We provide also free D38999 Series III CAD files.


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Key features

  • Derived from MIL-DTL-38999 series III version

  • For jam nut (TV07/TVS07) configurations

  • 41% smaller panel footprint on average

  • 20% lighter than standard 38999 receptacles (on average)


  • Military

  • Aeronautic

  • Advanced industrial


  • Matches MIL-DTL-38999 series III performance


  • Available on jam nut receptacles only (TV07/TVS07)

  • Available in crimp or PC Tail contacts (stand off shells also available with PC tail contacts)

  • Reduced Flange Deviation (to be added at the end of your part number):

    • F312 for standard reduced flange shells with crimp or PC Tail contacts (F311 with a safety castle nut)

    •  F059 for reduced flange shells with PC Tail contacts only (F058 with safety castle nut)


  • Mates with standard MIL-DTL-38999 series III plugs


    Since 1947, Amphenol Socapex has prescribed, designed and manufactured reliable and innovative interconnection solutions for harsh environments, specializing in standard and customized electrical and fiber optic connectors, contacts, accessories and cabling solutions.

    Located in the Mont Blanc region of France and Pune in India, Amphenol Socapex has a presence in over 100 countries around the world.

    Amphenol Socapex is part of Amphenol Corporation.