Dualok High Vibration D38999 Connectors
Dualok is an enhanced anti-decoupling mechanism designed to perform under severe vibration environments – far exceeding the performance of MIL-DTL-38999 Series III plugs. The Dualok system is proven to mitigate the negative effects of high vibration operation by eliminating connector back-off and reducing conditions that can cause fretting corrosion. Dualok is compatible with all D38999 Series III receptacle interfaces and has been qualified to Boeing Specification BACC63EK.
Features & Benefits:
Superior Electrical Performance:
The Dualok system eliminates back-off under shock and vibration which significantly improves electrical performance under lightning strike, Electro-magnetic pulse events, and overall EMI performance by minimizing the apertures between the plug and receptacle shell interfaces. Testing on D38999 Series III aluminum plugs with Dualok showed 75% less millivolt drop than mil-spec requirements.
Minimized Contact Fretting:
The pin-socket interface remains tight under mated conditions. Dualok yields more consistent integrity across the contacts and reduces friction-induced oxides formation.
Size and Weight Savings:
Lightweight, Hybrid Composite/Metal Design. Connector weight savings by utilizing Dualok composite coupling nut with a Stainless Steel or Aluminum connector (D38999 Series).
Tooled for all sizes
|Shell Size||B Thread 0.1-0.3L-TS-2B (Plated)||E Dia. Max.||E
Dia. Max. Metric
|V Thread Metric.|
|Electroless Nickel||Olive Drab Cadmium||Durmalon||Black Zinc||Electroless Nickel (With Ground Plane)||Olive Drab Cadmuim (With Ground Plane)||Marine Bronze|
|Salt Spray||48 Hrs||500 Hrs||500 Hrs||500 Hrs||48 Hrs||500 Hrs||2,000 Hrs|
|EMI Shielding||-65dB @ 10GHz||-65dB @ 10GHz||-50dB @ 10GHz||-50dB @ 10GHz||-65dB @ 10GHz||-65dB @ 10GHz||-65dB @ 10GHz|
|Passivated (Firewall)||Passivated (Non-Firewall)||Nickel Plated (Firewall)||Nickel Plated (Non-Firewall)|
|Salt Spray||500 Hrs||500 Hrs||500 Hrs||500 Hrs|
|EMI Shielding||-65dB @ 10GHz||-65dB @ 10GHz||-65dB @ 10GHz||-50dB @ 10GHz|
*Firewall connectors have stainless steel shell and coupling nut.
*Non-Firewall connectors have stainless steel shell and composite coupling nut.