EverySpec This link opens in a new windowThis site is a source for free downloads of government and military standards, specifications, handbooks, and documents. It.allows you to search and download a large number of current, historical, and free government and non-government specifications, standards, and documents, including Military Specifications (PRF, DTL, MIL, JAN, DoD), Military Standards and Drawings (MS, AN, AND) and Military Handbooks,Federal Specifications and Standards.