Cleveland-based TransDigm said Monday it plans to finance the deal with cash on hand and funds under a revolving credit facility.
Extant offers aftermarket-focused electronics, avionics and electromechanical products to the aerospace and defense sectors.
The company has estimated it will generate $85 million in revenue for its fiscal year ending September 2018 and that the majority of its full-year aftermarket business revenue will come from the military end market.
TransDigm is designs and produces components for military and aircraft platforms.