Exhibit 21 SUBSIDIARIES The subsidiaries of the Company as of October 31, 1998 are as follows: Jurisdiction of Name of Subsidiary Incorporation - ------------------ --------------- Armtec Defense Products Co. Delaware Auxitrol Co. Delaware Equipment Sales Co. Connecticut Esterline Technologies (Hong Kong) Limited Hong Kong Excellon Automation Co. California Excellon U.K. California Excellon Europa GmbH Germany Amtech Automated Manufacturing Technology, Inc. Utah Excellon Japan Co. Japan Federal Products Co. Delaware Federal Products U.K. Ltd. Delaware Fluid Regulators Corporation Ohio Hytek Finishes Co. Delaware Kirkhill Rubber Co. California Korry Electronics Co. Delaware Memtron Technologies Co. Delaware Mason Electric Co. Delaware Midcon Cables Co. Delaware TA Mfg. Co. California Kai R. Kuhl Company, Inc. California W.A. Whitney Co. Illinois Auxitrol Technologies S.A. France Auxitrol S.A. France Auxitrol International France Auxitrol Industries France 55A The above list excludes certain subsidiaries that, considered in the aggregate as a single subsidiary, would not constitute a significant subsidiary as of October 31, 1998. 55B