Downloaded from https://www.everyspec.com MIL-STD-1311D FOREWORD 1. This Department of Defense Standard is approved for use by all Departments and Agencies of the Department of Defense. 2. Comments, suggestions, or questions on this document should be addressed to DLA Land and Maritime – VAT, P.O. Box 3990, Columbus, OH 43218-3900, or emailed to TubesAmps@dla.mil . Since this contact information can change, you may want to verify the currency of this address information using the ASSIST Online database at https://assist.daps.dla.mil . ii