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NATO Slave adaptor


Client : US Army

Industry : Defence

Commission : The basic technical outline was to provide an electrically protected interface conversion from a MIL-C-38999 Series IV connector to a connector receptacle, commonly referred to as a NATO slave receptacle.

The limiting mechanical consideration due to existing Prime Mover space restrictions was that the overall volumetric envelope could not exceed 177 x 127 x 203mm

Additional design objectives were:

  • 100 A capability
  • 50 A Circuit Protection
  • Shock protected per MIL-STD-810, Table 516.4-II
  • Protected against immersion in salt water per MIL-STD-810E method 512.3
  • Operation in Temperatures from 49 degrees Celsius to – 46 degrees Celsius

Scope of Works : To keep the final cost down the approach was to use utilise commercial off the shelf components as much as possible. Where these were not capable of meeting the specification requirement, new components were either designed or special processes employed to ensure complete adherence to the stringent design objectives.

Full First Article Testing including Electrical, Mechanical and Environmental performance was performed to validate the effectiveness of the design and production processes.  

Results : A fully sealed and protected NATO Slave Adaptor. The product has in all parameters met or exceeded the initial design objectives.

Further Notes : The NATO Slave Adaptor is now in use in many parts of the world and continues to be supplied as a key operational component.