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Ultra Electronics Precision Air & Land Systems

Ultra Electronics Precision Air & Land Systems supplies innovative solutions to meet the environmental and operational requirements of the aerospace and defence industries. Ultra asked Martec to design a prototype connection assembly for a new weapon ejection system.

Key Facts

Custom design

Harsh/hostile environment

Match existing interface

Advanced production and sealing

Non-destructive testing

Pressure testing

Design team support

Case Study

High pressure electrical feedthrough

Manufacturing challenges

Martec was asked to create a high pressure electrical feedthrough with a integral connector to interface with the client’s hardware and provide the polarisation required for an insertable plug. The client wanted the new assembly to use the smallest possible military-grade standard connector and to be capable of withstanding significant levels of design and burst pressure.


We identified the most suitable connector form for the job and put together a concept design for the client’s consideration. Once our concept was approved, Ultra provided Martec with detailed interface drawings to enable us to design and create the prototype connector assembly using advanced 3D CAD and CNC machining techniques.


  • Extended high pressure
  • Hermetic performance by helium leak
  • Electrical
  • Dimensional checks


Material Shell - Stainless Steel 316L
Insert - Custom designed PEEK connector

MIL-DTL-26482 Insert arrangement 8-4
Pin count 4 Way