ESCO Technologies Inc. is a provider of engineered components and systems for aviation, Navy, defense and industrial customers. The Company is engaged in designing and manufacturing radio frequency (RF) test and measurement products and systems. It provides diagnostic instruments, software and services to industrial power users and the electric utility and renewable energy industries. Its segments include Aerospace & Defense (A&D), Utility Solutions Group (USG), and RF Test & Measurement (Test). The A&D segment primarily designs and manufactures specialty filtration, fluid control and naval products, including hydraulic filter elements, fluid control devices and precision-tolerance machined components used in aerospace and defense applications, naval magnetic signature management systems, naval power control and conversion systems, products and systems to reduce vibration and/or acoustic signatures and otherwise reduce or obscure a vessel’s signature, and other communications.