Amphenol Aerospace provides the most extensive selection of 38999 connectors available on the market, catering to a wide range of applications and requirements. These connectors are known for their high performance, reliability, and durability, making them ideal for demanding environments such as aerospace, military, and industrial applications.
In addition to their comprehensive lineup of standard Mil-Spec connectors, Amphenol also designs and produces numerous specialized variants that exceed traditional Mil-Spec boundaries. These advanced connectors incorporate cutting-edge materials and technologies to deliver superior performance in extreme conditions. They are engineered to provide enhanced resistance to harsh environmental factors such as extreme temperatures, vibration, moisture, and electromagnetic interference.
Amphenol's specialized 38999 connectors are versatile and adaptable, offering solutions for a variety of complex challenges. They can be customized with different shell sizes, contact arrangements, and plating options to meet the specific needs of various industries. This flexibility ensures that customers can find the perfect connector for their unique applications, whether it's for critical avionics systems, ruggedized communication equipment, or high-speed data transmission.

Series Five Lightweight Military Circular Connectors
Amphenol® Series Five connectors are a lightweight circular connector solution ideal for ruggedized military and aerospace applications. Series Five connectors feature AS39029-Qualified gold-plated contacts and 38999-qualified insulators while being 20% lighter and 50% smaller than standard 38999 connectors. These Amphenol connectors have a “Diamond Grip” nut design, full metal clip contact retention and are scoop-proof.
Buy nowMIL-DTL-38999 Series I - LJT Connectors
Amphenol® MIL-DTL-38999 Series I Connectors were developed to meet the needs of the aerospace industry and provided the impetus for the development of the MIL-C-38999 specifications, which later was superseded by MIL-DTL-38999. Amphenol's MIL-DTL-38999 Series I and commercial LJT series connectors meet or exceed the Mil-Spec requirements and are available in aluminum or stainless steel as well as several different finish options.
Buy nowMIL-DTL-38999 Series II - JT Connectors
Amphenol® MIL-DTL-38999 Series II Connectors were developed to meet the needs of the aerospace industry and provided the impetus for the development of the MIL-C-38999 specifications, which later was superseded by MIL-DTL-38999. Amphenol's MIL-DTL-38999 Series II and commercial JT series connectors meet or exceed the Mil-Spec requirements and are available in aluminum or stainless steel as well as several different finish options.
Buy nowTri-Start MIL-DTL-38999 Series III - TV Connectors
Amphenol® Tri-Start MIL-DTL-38999 Series III Connectors offer the highest performance capabilities for both general duty and severe environment applications. Meeting or exceeding MIL-DTL-38999 Series III requirements, Amphenol's Tri-Start connector is available in aluminum, stainless steel or composite with several finish options.
Buy nowHD38999 High Density Connectors
Amphenol® HD38999 family of connectors has over 30% more contact density than the highest density Mil-Spec 38999 connectors of similar size. This series of connectors was designed to utilize mil-specified 38999 components with the exception of the insert arrangements. Utilizing existing mil-qualified 39029 size 23 contacts and standard 38999 insert materials, these connectors are essentially a drop-in replacement for the standard 38999 connector.
Buy nowMIL-DTL-26482 Series II Connectors
Amphenol Aerospace offers the Matrix product line of MIL-DTL-26482, Series 2 Connectors. This series provides a bayonet coupling connector with crimp rear insertable, rear releasable contacts.
Buy now2M Micro Connectors
2M801 is generally considered a legacy series. Its successor, the 2M805 series, has a number of important improvements, including a triple-start thread (which reduces the number of turns it takes to fully mate the connectors) and an EMI band (which increases shell-to-shell conductivity and greatly improves signal shielding). You should choose 2M801 if you’re looking to maintain compatibility or interoperability with existing technology or cables.
Buy nowCatalog: Series Five
Check out this catalog to learn more about the Series Five connectors, featuring rugged and versatile solutions for various aerospace and military applications. The catalog includes detailed product specifications, configurations, and technical data.

Catalog: MIL-DTL-38999 Connectors
View this catalog for more information on Amphenol’s MIL-DTL-38999 connectors for military, aerospace and harsh environments. The catalog includes detailed product specifications, configurations, and technical data.

Datasheet: HD38999 High Density Connectors
Explore this catalog to discover how these connectors were designed to utilize mil-specified 38999 components with the exception of the contacts and inserts arrangement.
