D38999/26FE6SC Amphenol 6-Position Female Circular Plug
Manufacturer: Amphenol
Series: Tri-Start™ TV / MIL-DTL-38999 Series III
Package/Case: Shell Size 17, 6-Position Free-Hanging Circular Plug
Description: 6-position MIL-DTL-38999 Series III straight plug with female Size 12 crimp contacts, electroless nickel-plated aluminum shell and alternate C key orientation.
The D38999/26FE6SC from Amphenol Aerospace is a 6-position female circular plug designed to meet MIL-DTL-38999 Series III requirements. It uses six Size 12 socket contacts, an electroless nickel-plated aluminum shell and alternate key orientation C. The connector provides a rugged, shielded and relatively high-current interconnect for aerospace, military, marine and demanding industrial equipment.
Specifications
| Parameter | Specification |
|---|---|
| Connector type | Straight circular plug |
| Contact gender | Female sockets |
| Number of positions | 6 |
| Contact arrangement | 6 × Size 12 contacts |
| Shell size / insert arrangement | 17-06 |
| MIL shell size | E |
| Termination | Crimp |
| Mounting type | Free-hanging / cable mount |
| Coupling mechanism | Tri-start threaded, self-locking |
| Shell material | Aluminum |
| Shell finish | Electroless nickel |
| Contact material | Copper alloy |
| Contact finish | Gold |
| Typical current rating | Up to 23A per contact |
| Key orientation | C |
| Shielding | Shielded |
| Environmental protection | Environment-resistant |
| Operating temperature | −65°C to +200°C |
| Qualification | MIL-DTL-38999 Series III |
| Applications | Aerospace, aviation, marine and military |
Features and Applications
The D38999/26FE6SC uses a self-locking tri-start threaded coupling that supports rapid mating and helps prevent unintended disengagement under shock and vibration. Its conductive nickel finish and shielded construction provide EMI protection for sensitive electrical systems.
Typical applications include:
Aircraft power and control systems
Avionics equipment
Radar and communication systems
Military ground vehicles
Unmanned aerial vehicles
Marine and shipboard electronics
Actuator and motor interfaces
Ruggedized power-distribution equipment
D38999/26FE6SC FAQ
Is D38999/26FE6SC a male or female connector?
It is a female plug because it uses socket contacts. The plug’s outer shell style does not determine contact gender.
How many contacts does it contain?
It contains six Size 12 socket-contact positions in the 17-06 insert arrangement.
What does the SC suffix mean?
The letter S specifies female socket contacts, while C identifies alternate key orientation C.
Can it mate with D38999/20FE6PN?
No. D38999/20FE6PN uses normal key orientation N. A compatible mating receptacle must use C orientation, such as D38999/20FE6PC.
What is the current rating?
The Size 12 contacts are commonly rated for up to approximately 23A per contact. The actual usable current must be determined through system-level thermal and electrical derating.
Are the contacts included?
Contact inclusion depends on the ordering configuration and supplier. The D38999/26FE6SC-LC version is specifically supplied without contacts.
Availability, Price and RFQ
DataStorageIC supplies Amphenol Aerospace circular connectors for prototype, maintenance and production requirements. Contact us for current information on D38999/26FE6SC stock, price, lead time, date code and supporting documentation.



