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.

Compact proprietary interface · Threaded
Compact aerospace circular connectors for equipment harnesses where available space and connector weight are important.
Aerospace · Land
Compact equipment power and signal connections.
| Reference interface | Series Five proprietary circular family |
|---|---|
| Coupling | Double-start threaded |
| Contacts | AS39029 contact options |
| Configuration | Multiple inserts and shell styles |
| Selection | Confirm power-contact arrangement and mating interface |
Reference-family data. Confirm dimensions, ratings, materials and approvals for the exact quoted part.
Series Five is a product-family name, not MIL-DTL-38999 Series V. Do not assume standard 38999 interchangeability.