MIL-DTL-38999 38999 Hermetic Connectors

• Tell us your preference of 38999 connector
• Confirm details on your application
• Let us know if you have any mechanical interface requirements (bulkhead fitting, custom housing, etc.)
• Confirm the best electrical connection – we hermetically seal virtually any conductor or optical fiber

Douglas Electrical Components’ hermetic MIL-DTL-38999 connectors are designed for power, signal, networking, and fiber optic applications across various industries. Its compact and lightweight design, coupled with robust metal housing and various pin counts, offers design flexibility without compromising durability in harsh environments.

We specialize in customizing standard MIL-DTL-38999 connectors and converting them into hermetically sealed assemblies to meet your precise needs. Select from a variety of 38999 series, and trust Douglas to deliver hermetic sealing tailored to your requirements. Our offerings include simple drop-in replacements with integrated pins or terminals, as well as complete wire, cable, or fiber assemblies to streamline installation and integration.

Start Designing

To get started with your custom hermetic 38999 connector solution, provide us with information about the connector you’d like to hermetically seal, the desired electrical interface (pins, wires, cables, optical fibers, etc.), and any custom mechanical interface requirements. Trust Douglas Electrical Components for all your hermetic MIL-DTL-38999 connector needs.

MIL-DTL-38999 Series I Box Mount Connector

The MIL-DTL-38999 Series I Box Mount Connector is a high-performance connector featuring a box-shaped housing for panel mounting. It is designed for demanding military and aerospace applications, providing reliable and durable connections suitable for environments requiring ruggedness and resilience. 58657 38999 Series I Box Mount receptacle features a threaded coupling mechanism that provides secure mating and prevents accidental disconnection.

While box mount hermetic 38999 connectors typically require more space than a jamnut design, they do offer easier access and alignment of connectors, typically when mounting multiple connectors to a panel or system.

58657 Series I 38999 connectors are available with various insert arrangements to make your integration simple. Design a new solution with Douglas.

MIL-DTL-38999 Series I Jam Nut Connector

58658 MIL-DTL-38999 Series I jam nut connectors are built for high-vibration and shock environments, offering a threaded jam nut for a secure and unwavering connection. Featuring a jam nut coupling mechanism, this circular connector ensures secure mating and resistance to vibration, guaranteeing uninterrupted connectivity in demanding applications like aerospace, military, and industrial applications. Douglas hermetically seals the jamnut connector while incorporating pins, solder cups, or wires directly within the epoxy; this protects the electrical connection directly within the assembly.

58658 hermetic 38999 jam nut connectors are designed and manufactured in New Jersey with 100% testing of the hermeticity and electrical connection.

MIL-DTL-38999 Series III Box Mount Connector

The 58659 MIL-DTL-38999 Series III Box Mount Connector sets the standard for ruggedized circular connectors, delivering exceptional performance in harsh environments. Designed for aerospace, military, and industrial applications, this connector features a threaded coupling mechanism that ensures secure mating and prevents accidental disconnection. 58659 38999 Series III Box Mount Connector shares the box-shaped housing design for secure panel mounting and easy connector access.

The box mount design enables simplified mounting, alignment, and grounding for power and signal applications. Douglas will hermetically seal various electrical connections directly within our low outgassing hermetic epoxy to ensure a complete air and moisture-tight seal.

MIL-DTL-38999 Series III Jam Nut Connector

MIL-DTL-38999 Series III Jam Nut Connector combines high-density contact arrangements with a compact design, maximizing space efficiency while maintaining robust functionality. Whether utilized in avionics, missile systems, or ruggedized communication equipment, this connector delivers dependable performance where it matters most. Similar to the Series I jam nut receptacle, it prioritizes security in high-vibration environments with a threaded jam nut for a firm connection.

Available in a variety of housing materials including aluminum, stainless steel, nickel, and composites, Series III connectors can be hermetically sealed with wires, PC tails, or solder cups directly within the electrical connection protecting against moisture and air. With nine standard shell sizes, this series offers a high level of customization to your exact requirements.