MIL-DTL-38999 Series I, II, and III Connectors, 38999 Derivatives, and Custom Accessories
![Product MIL-DTL-38999 Series III - TV](https://staao.blob.core.usgovcloudapi.net/images-products-primary/MIL-DTL-38999-Series-III-TV-Thumbnail.jpg)
MIL-DTL-38999 Series III - TV
Amphenol Tri-Start MIL-DTL-38999 Series III Connectors offer the highest performance capabilities for both general duty and severe environment applications.
![Product MIL-DTL-38999 Series II - JT](https://staao.blob.core.usgovcloudapi.net/images-products-primary/MIL-DTL-38999-Series-II-JT-Thumbnail.png)
MIL-DTL-38999 Series II - JT
Originally developed for the aerospace industry during the development of MIL-C-38999. The lightweight, space-saving design also qualified to MIL-DTL-27599
![Product MIL-DTL-38999 Series I - LJT](https://staao.blob.core.usgovcloudapi.net/images-products-primary/MIL-DTL-38999-Series-I-LJT-Thumbnail.jpg)
MIL-DTL-38999 Series I - LJT
Bayonet coupling, scoop-proof design qualified to MIL-DTL-38999 and MIL-DTL-27599 Series I
Mil-Spec Derivatives
![Product High Temperature Series Five Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/high-temperature-series-five-connectors-Thumbnail.jpg)
High Temperature Series Five Connectors
High Temperature Series Five connectors are the ideal solution for interconnect and electrical wire assemblies near engines, firewalls, and other high-heat sources.
![Product Deep Space 38999](https://staao.blob.core.usgovcloudapi.net/images-products-primary/deep-space-38999-Thumbnail.jpg)
Deep Space 38999
Designed for the frigid temperatures of space and other extreme cold-weather environments, Amphenol Aerospace’s new Deep Space 38999 series is perfectly suited for below-zero applications.
![Product High Power 38999](https://staao.blob.core.usgovcloudapi.net/images-products-primary/High-Power-38999-Thumbnail.jpg)
High Power 38999
MIL-DTL-38999 Series III connector with RADSOK®, Temper-Grip, or standard high power contacts to accommodate requirements for 500+ amps.
![Product High Voltage 38999](https://staao.blob.core.usgovcloudapi.net/images-products-primary/High-Voltage-38999-Thumbnail.png)
High Voltage 38999
An expansion of the MIL-DTL-38999 series to provide solutions for next-generation power requirements.
![Product HD38999 High Density](https://staao.blob.core.usgovcloudapi.net/images-products-primary/HD38999-High-Density-Thumbnail.jpg)
HD38999 High Density
Features 30% more contact density than standard MIL-DTL-38999 inserts while utilizing the same connector dimensions and shell sizes.
![Product Dualok High-Vibration](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Dualok-High-Vibration-Thumbnail.jpg)
Dualok High-Vibration
An enhanced anti-decoupling mechanism designed to perform under severe vibration environments – far exceeding the performance of MIL-DTL-38999 Series III plugs.
![Product SJT Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/SJT-Connectors-Thumbnail.png)
SJT Connectors
Combine unique design features of the scoop-proof LJT series within standard mounting dimensions of JT types.
![Product Aquacon Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Aquacon-Connectors-Thumbnail.png)
Aquacon Connectors
Amphenol Aquacon connectors have been designed to provide maximum service in oceanic or fluid immersion applications.
![Product ETV38999](https://staao.blob.core.usgovcloudapi.net/images-products-primary/ETV38999-Thumbnail.png)
ETV38999
ETV38999 is a high-performance circular connector product range developed for next-generation Aeromotive applications where performance must be met with affordability.
Printed Circuit Board Connectors
![Product D38999 Series III PCB](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-III-PCB-Thumbnail.jpg)
D38999 Series III PCB
MIL-DTL-38999 Series III-type connectors with PC tail contacts
![Product D38999 Series II PCB](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-II-PCB-Thumbnail.png)
D38999 Series II PCB
38999 Series II type connectors with PC Tail contacts.
![Product D38999 Series I PCB](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-I-PCB-Thumbnail.png)
D38999 Series I PCB
MIL-DTL-38999 Series I-type connectors with PC tail contacts
![Product D38999 PCB Hermetics](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-PCB-Hermetics-Thumbnail.png)
D38999 PCB Hermetics
D38999 Series III hermetic connectors with PC tails for Printed Circuit Board assemblies in severe environment applications needing EMI Shielding
High Speed
![Product High Speed Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/High-Speed-Connectors-Thumbnail.png)
High Speed Connectors
Quadrax, Differential Twinax, Coax, and other contact options for Gigabit Ethernet, USB 3.0, HDMI and other high speed applications
![Product Fiber Optic Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Fiber-Optic-Connectors-Thumbnail.png)
Fiber Optic Connectors
Single-mode, multi-mode options using MIL-PRF-29504, ARINC 801, or JSFC terminis, as well as MT ferrules.
![Product Ground Plane Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Ground-Plane-Connectors-Thumbnail.jpg)
Ground Plane Connectors
MIL-DTL-38999 type connectors with metal inserts to maintain a common ground plane with the shell for all the shielded contacts contained in the connector
EMI/EMP Filter Protection
![Product D38999 Series III Filter Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-III-Filter-Connectors-Thumbnail.jpg)
D38999 Series III Filter Connectors
High-performance general duty D38999 Series III threaded Filter Connector designed to withstand severe environment applications.
![Product D38999 Series II Filter Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-II-Filter-Connectors-Thumbnail.jpg)
D38999 Series II Filter Connectors
Subminiature, environmental-class connectors used where a quick disconnect coupling system is required for blind mating.
![Product D38999 Series I Filter Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-I-Filter-Connectors-Thumbnail.jpg)
D38999 Series I Filter Connectors
The filtered LJT Series offers all the design features of Series II plus a 100% “scoop-proof” contact protection design.
Hermetic/Sealed
![Product D38999 Series III Hermetic](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-III-Hermetic-Thumbnail.jpg)
D38999 Series III Hermetic
MIL-DTL-38999 Series III connectors with tri-start coupling and a glass to metal seal achieving mil-spec hermetic sealing requirements.
![Product D38999 Series II Hermetic](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-II-Hermetic-Thumbnail.jpg)
D38999 Series II Hermetic
MIL-DTL-38999 Series II connectors with fast, 1/3 turn bayonet coupling and a glass to metal seal achieving mil-spec sealing requirements.
![Product D38999 Series I Hermetic](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-I-Hermetic-Thumbnail.jpg)
D38999 Series I Hermetic
MIL-DTL-38999 Series I connectors with fast, 1/3 turn bayonet coupling, scoop proof design to protect the contacts, and a glass to metal seal achieving mil-spec sealing requirements.
![Product AmpheSEAL High Pressure](https://staao.blob.core.usgovcloudapi.net/images-products-primary/AmpheSEAL-High-Pressure-Thumbnail.jpg)
AmpheSEAL High Pressure
38999 High Pressure Solution
Lanyard Release / Quick Disconnect Connectors
![Product D38999 Series III Breakaway Fail-Safe](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-III-Breakaway-Fail-Safe-Thumbnail.jpg)
D38999 Series III Breakaway Fail-Safe
D38999/29, /30, /31 and MIL-STD-1760 Type II-qualified breakaway connectors for weapons-release applications.
![Product D38999 Series I LJT Breakaway](https://staao.blob.core.usgovcloudapi.net/images-products-primary/D38999-Series-I-LJT-Breakaway-Thumbnail.jpg)
D38999 Series I LJT Breakaway
Provide unequaled performance in environments requiring instant disengagement.
![Product T-Line Push-Pull Connectors](https://staao.blob.core.usgovcloudapi.net/images-products-primary/T-Line-Push-Pull-Connectors-Thumbnail.png)
T-Line Push-Pull Connectors
A push-pull mating connector that incorporates a retention spring in the receptacle and a full-mating indicator band on the plug.
Custom Designs and Accessories
![Product 38999 Bulkhead Feedthroughs](https://staao.blob.core.usgovcloudapi.net/images-products-primary/38999-Bulkhead-Feedthroughs-Thumbnail.jpg)
38999 Bulkhead Feedthroughs
Double-ended receptacles with feedthrough contacts that mate to standard Mil-Spec D38999 plugs.
![Product 38999 Integral Accessories](https://staao.blob.core.usgovcloudapi.net/images-products-primary/38999-Integral-Accessories-Thumbnail.jpg)
38999 Integral Accessories
Includes features that eliminate the need for additional accessories.
![Product Backshells, Strain Reliefs, Caps, Dummy Receptacles](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Backshells-Strain-Reliefs-Caps-Dummy-Receptacles-Thumbnail.png)
Backshells, Strain Reliefs, Caps, Dummy Receptacles
Complete line of accessories for all Mil-Spec connectors
![Product 38999 Connector Savers](https://staao.blob.core.usgovcloudapi.net/images-products-primary/38999-Connector-Savers-Thumbnail.jpg)
38999 Connector Savers
Protect connectors subjected to repeated mating cycles and prevent costly repairs associated with the replacement of connectors and cables.
![Product Alternate to Cadmium Platings](https://staao.blob.core.usgovcloudapi.net/images-products-primary/Alternate-to-Cadmium-Platings-Thumbnail.png)
Alternate to Cadmium Platings
RoHS compliant, hexavalent chromium-free, alternate-to-cadmium plating options for Mil-Spec type connectors