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.

Aircraft equipment · Engine-area options
Aircraft circular connectors with general-purpose, engine-area and firewall configurations for electrical harnesses.
Aerospace
Aircraft auxiliary power, controls and engine-area wiring.
| Standard | MIL-DTL-26500 reference family |
|---|---|
| Coupling | Threaded and bayonet configurations |
| Shell materials | Aluminium or stainless steel |
| Contacts | AS39029 contact options |
| Special versions | Engine-area and firewall classes |
Reference-family data. Confirm dimensions, ratings, materials and approvals for the exact quoted part.
Temperature and firewall performance depend on the selected class; they do not apply to the entire family.