D38999/26FD19PN Amphenol 19-Position Circular Plug
Manufacturer: Amphenol
Series: Tri-Start™ TV / MIL-DTL-38999 Series III
Package/Case: Shell Size 15, 19-Position Free-Hanging Circular Plug
Description: 19-position MIL-DTL-38999 Series III circular plug with male crimp contacts, aluminum shell, electroless nickel finish and normal key orientation.
The D38999/26FD19PN from Amphenol Aerospace is a 19-position male circular plug qualified to MIL-DTL-38999 Series III. It combines a rugged aluminum shell, electroless nickel finish, gold-plated crimp contacts and a self-locking threaded coupling mechanism. Designed for reliable signal and low-current power connections, it is suitable for aerospace, avionics, military vehicles, marine equipment and other harsh-environment systems.
Specifications
| Parameter | Specification |
|---|---|
| Connector type | Circular plug |
| Contact type | Male pins |
| Number of positions | 19 |
| Contact size | 19 × Size 20 |
| Termination | Crimp |
| Mounting type | Free-hanging / in-line |
| Coupling mechanism | Tri-start threaded, self-locking |
| Shell size / insert arrangement | 15-19 |
| Shell material | Aluminum |
| Shell finish | Electroless nickel |
| Contact material | Copper alloy |
| Contact finish | Gold |
| Contact finish thickness | 50µin / 1.27µm |
| Orientation | N, normal |
| Shielding | Shielded |
| Environmental protection | Environment-resistant |
| Operating temperature | −65°C to +200°C |
| Qualification | MIL-DTL-38999 Series III |
| Part status | Active |
Features and Applications
The D38999/26FD19PN uses a self-locking tri-start threaded coupling system that supports fast mating while helping prevent accidental disengagement under vibration. Its shielded aluminum construction provides a balance between mechanical durability, EMI protection and weight.
Typical applications include:
Aircraft avionics and flight-control equipment
Radar and electronic warfare systems
Military ground vehicles
Navigation and communication equipment
Marine and shipboard electronics
Ruggedized sensors and instrumentation
Engine-control and power-distribution systems
Mating Connector and Accessories
A corresponding receptacle must use the same 15-19 insert arrangement, opposite socket contacts and the same normal key orientation. One applicable configuration is:
D38999/20FD19SN – wall-mount receptacle with female socket contacts
The complete assembly may also require contacts, sealing plugs, a cable clamp or backshell. Compatible accessory families include:
Size 20 crimp contacts
M85049 backshells and cable clamps
EMI/RFI shield termination accessories
Protective caps
Sealing plugs and insertion/removal tools
Compatibility should be checked using the complete connector and accessory part numbers rather than shell size alone.
D38999/26FD19PN FAQ
Is D38999/26FD19PN a plug or receptacle?
It is a straight, free-hanging circular plug designed for cable mounting.
Does it use pin or socket contacts?
D38999/26FD19PN uses 19 male pin contacts. The letter P in the part number identifies pin contacts.
What is the shell finish?
The aluminum shell has an electroless nickel finish. This configuration provides corrosion resistance, conductivity and EMI shielding without an olive-drab cadmium coating.
What connector mates with D38999/26FD19PN?
A compatible receptacle must have the 15-19 insert arrangement, female socket contacts and N orientation. D38999/20FD19SN is a corresponding wall-mount receptacle configuration.
Is D38999/26FD19PN suitable for high-vibration environments?
Yes. Its MIL-DTL-38999 Series III construction and self-locking tri-start threaded coupling are designed for aerospace, military and other vibration-intensive applications.
Are contacts and accessories always included?
The supplied configuration can vary by procurement channel. Confirm whether crimp contacts, sealing plugs, backshells and installation tools are included before ordering.
Availability, Price and RFQ
DataStorageIC supplies Amphenol Aerospace circular connectors for prototype, maintenance and production requirements. Contact us to request current information for D38999/26FD19PN stock, price, lead time, date code and supporting documentation.
