Family reference imageD38999 Series III · Metal shell
MIL-DTL-38999 III / EN3645
Metal-shell circular connectors for signal, power and data interfaces in demanding environments.

Series III · Power and control harnesses
Environmental circular connectors with several coupling formats for equipment wiring and auxiliary power circuits.
Aerospace · Land · Marine
Equipment power and control harnesses.
| Standard | MIL-DTL-83723 Series III reference range |
|---|---|
| Coupling options | Bayonet, threaded and quick-disconnect variants |
| Contacts | Sizes 12, 16 and 20 |
| Circuit count | 2–61 contacts by arrangement |
| Termination | Rear-release crimp |
Reference-family data. Confirm dimensions, ratings, materials and approvals for the exact quoted part.
Coupling styles and insert configurations differ; confirm the mating connector and exact rating.