MIL-DTL-38999
Aerospace Grade
MIL-DTL-38999 Connectors Supplier for Aerospace & Defense Applications
High-reliability D38999 circular connectors and cable assemblies for aerospace, military and harsh-environment systems
MIL-DTL-38999 Series I / II / III supply
Custom D38999 cable assemblies
Small-batch accepted
Stable China-based supply chain with global B2B experience
Engineering Resources for D38999 Connector Projects
D38999/20FB35SN, D38999/20FB5SN, D38999/20WA35PN, D38999/24FG35PN, D38999/24WA35PN, D38999/26FB35PN,D38999/26FB5PN, D38999/26WA98SN, D38999/26WB05SN, D38999/26WD05SN and much more, contact us for details
MIL-DTL-38999 Series I
Series I connectors are bayonet coupled and have high-vibration properties. They are scoop proof and are ideal for heavy wind and moisture environments. They are utilised when a fast disconnect coupling system is required
MIL-DTL-38999 Series II
Series II connectors are bayonet coupled, are non-scoop proof, and have a low profile, so are used when weight or space is limited, or in low-vibration, high moisture, and strong wind situations
MIL-DTL-38999 Series III
Series III connectors are coupled by a quick screw Tri start thread, are scoop proof, and are best suited for normal mating and unmating applications and can be used in high temperature, moisture, wind, or vibration environments when used with the correct accessories. Series III connectors are most commonly use in Military and Aerospace designs.MIL-DTL-38999 Product Display
Complete range of D38999 circular connectors for aerospace and defense applications
D38999 Connector Shell Sizes
Technical Specifications
| Model | MIL-DTL-D38999 Series |
| Series | I / II / III / IV |
| Connector Type | Plug / Socket |
| Number of Positions | 3 / 4 / 5 / 6 / 8 / 10 / 12 / 13 / 19 / 22 / 37 / 66 / 79 |
| Pin Orientation | Straight |
| Shell Size | A / B / C / D / E / F / G / H / J |
| Type of Fastening | Bayonet / Threaded |
| Mounting Type | Cable Mount / Panel Mount |
| Mounting Feature | Flange / Bulkhead |
| Rated Voltage | 600V-2300V |
| Rated Current | 5A / 7.5A / 13A / 23A / 40A |
| Insulation Resistance | ≥5000 MΩ to 25° C and 65 % HR max. |
| IP Rating | IP67 |
| Mechanical Operation | ＞500 Mating Cycles |
| Ambient Temperature | -65℃ to +175℃ / -65℃ to +200℃ |
How to Order
Where D38999 Connectors Are Used
Mission-critical applications across aerospace, defense, and harsh-environment industries
Aerospace Systems
Military Aircraft
Defense Electronics
Satellite Communication
Military Vehicles
Why Global Companies Trust Our D38999 Supply
Proven reliability and engineering excellence for mission-critical connector projects
