AN AMERICAN NATIONAL STANDARD ENGINEERING DRAWING AND RELATED DOCUMENTATION PRACTICES Types and Applications of Engineering Drawings ASME Y14.24M-1989 ~ The American Society of I ® Mechanical Engineers I '---------345 East 47th Street, New York, N.Y. 10017 ( Date of Issuance: May 31. 1991 This Standard will be revised when the Society approves the issuance of a new edition. There will be no addenda or written interpretations of the re­ quirements of this Standard i,ssued to this edition. ASME is the registered trademark of The American Society of Mechanical Engineers This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Consensus Committee that approved the code or standard was balanced to assure that individuals from competent and concerned interests have had an opportunItY to participate. The proposed code or standard was made available for public review and comment which provides an opportunity for additional public input from Industry, academia, regulatory agencies, and the public-at-Iarge. ASME does not "approve," "rate," or "endorse" any item, construction, proprietary device, or activity. ASME does not take any position with respect to the validity of any patent rights asserted in connection with any items mentioned in this document, and does not undertake to insure anyone utilizing a standard against liability for infringement of any applicable Letters Patent, nor assume any such liability. Users of a code or standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, is entirely their ow~ responsibility. Participation by federal agency representative(s) or person(s) affiliated with industry is not to be interpreted as government or industry endorsement of this code or standard. ASME accepts responsibility for only those interpretations issued in accordance with governing ASME procedures and policies which preclude the issuance of Interpretations by individual vol­ unteers. No part of this document may be reproduced in any form, in an electronic retrieval system or otherwise, without the prior written permission of the publisher. Copyright @ 1991 by THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS AU Rights Reserved Printed in the U.S.A. FORewORD (This Foreword is not part of ASME Y14.24M-1989.) This Standard was prepared to define the accepted drawing types used to establish engineering requirements. Each type is defined by general description, application guide­ lines, and specific content requirements. Work on this Standard considered the types of engineering drawings most frequently used by business, industry, and government com­ munities in the United States of America in the production and procurement of hardware. This Standard attempts to seIVe the individual and combined needs of these communities and assure consistency of application and interpretation. Drawing definitions are intended to permit preparation by any suitable method (man­ ual, computer-aided, photographic, etc.); therefore preparation techniques or methods of reproduction are nC?t described. On these bases, a series of meetings were held to identify, select, and prepare proposed text and illustrations. At each stage of development, the Subcommittee considered the selection of elements best suited for a national standard. Members of the Y14.24 Sub­ committee represented a cross section of American industry and the Department of Defense (DoD). Liaison with technical societies such as the American Defense Prepar­ edness Association (ADPA)~ Electronic Industries of America (EIA), and Society of Automotive Engineers (SAE), provided additional technical support. In addition to the. current Subcommittee Members who helped finalize this Standard, the following personnel served in the development of its content: O. C. Baker, Texas Instruments Inc. D. S. Bennett, Jr., Air Force Logistics Command P. D. Calvin, TRW Defense & Space Systems Group M. S. Clifton, U.S. Naval Ship Missile Systems Engineering Station L. W. Cornell, Boeing Aerospace Co. D. L. Edmunds, Martin Marietta Corp., Data Systems Division G. Garrard, U.S. Naval Sea Systems Command R. A. Graefe, McDonnell Douglas Corp. J. Bobko, U.S. Army Electronics Command C. A.. Nazian, U.S. Army Munitions Command T. C. Pritchard, Lockheed Missile and Space Co. M. Randolph, United Airlines A D. Signor, U.S. Naval Ship Weapon Systems M. E. Taylor, U.S. Army Armament Research, Development, and Engineering Center J. U. Teague, Lockheed California Co. R. A. Timlin, Martin Marietta Corp. J. L. Zeno, Air Force Logistics Command Commendation is extended to the companies and DoD Departments and Agencies for sponsoring participants in this activity and to those whose earlier efforts provided the basis for the types of drawings in this Standard. The success of this effort can be attributed to their demonstrated interest, cooperation, and support. iii Coordination of this Standard with the International Standards Organization (ISO/ 'TCIO/SCI) is intended to help enhance world understanding of the various types of drawings in use within the United States. Suggestions for improvement of this Standard are welcomed. They should be sent to the American Society of Mechanical Engineers, Standards Department, 345 East 47th Street, New York, NY 10017. After approval by the Y14 Committee and the sponsor, and after public review, this Standard was approved as an American National Standard by the American National Standards Institute, Inc., on November 3, 1989. iv ASME STANDARDS COMMITTEE Y14 Engineering Drawings and Related Documentation Practices rrhe following is the roster of the Committee at the time of approval of this Standard.} OFFICERS P. E. McKim, Chairman E. L Kardos, Vice Chairman L Bums, Vice Chairman M. Merker. Secretary COMMITTEE PERSONNEL A. R. Anderson, General Motors, Engine Division D. E. Bowerman, Copeland Corp. P. D. Calvin, TRW Defense & Space Systems Group R. A. Chadderdon, Southwest Consultants T. Chleboski, U.S. Army Armament Research Development and Engineering Center R. P. Tremblay, Alternate, U.S. Army Armament Research Development and Engineering Center F. A. Christiana, ABB - Combustion Engineering Inc. M. E. Curtis, Jr., Rexnord Inc. H. L Dubocq, Grumman Aircraft Systems R. J. Dybas, Bell Aerospace Textron L. W. Foster, Lowell W. Foster Associates, Inc. P. R. Kennicott Sandia National Labs J. J. Knopp, The Gleason Works C. G. Lance, Santa Cruz Technology Center W. J. McGee, National Standards Educator Association R. L Mueller, GE Aircraft Engines E. Niemiec, Westinghouse Electric Corp., Naval Systems Division L J. Phillips, United Technologies Corp., Pratt & Whitney D. L Ragon, Deere & Co. R. L. Tennis, Caterpillar Inc. G. H. Whitmire, TECrrrend K. E. Wiegandt. Sandia National Labs SUBCOMMITTEE 24 - TYPES AND APPLICATION OF ENGINEERING DRAWINGS L Bums, Chairman, Hughes Aircraft Co. L A. Ciskowski, The Boeing Co. D. M. Hagler, E-Systems Inc. G. Neary, McDonnell Douglas Corp. T. D. O'Donnell, Pitney Bowes R. P. Tremblay, U.S. Army Armament Research Development and Engineering Center v CONTENTS Foreword. .... .. .... .. .. .. .. .. ... .. ... ... .. .... iii Standards Committee Roster .................. v 1 General............................................................................ 1 1.1 Scope.......... ............. ............. ...... ... ....... ... .......... 1 1.2 Applicable Documents ............... 1 1.3 D~finitions. 2 1.4 Methods and Styles of Preparation ....................................... 2 1.5 Illustrations. 2 1.6 Application Guidelines .................................................... 2 1.7 Drawing Content .......................................................... 3 1.8 Tabulation. 3 1.9 Combination of Drawing Types ........................................... 3 1.10 Arlcillary Drawings' ........................................................ 3 2 Layout Drawing .................................................................. 3 2.1 Description .............................................. ~................. 3 2.2 Application Guidelines ..................................................... 3 2.3 Requirements .............................................................. 3 3 Detail Drawing ................................................................... 4 3.1 Monodetail Drawing ....................................................... 4 3.2 Multidetail Drawing ....................................................... 4 4 Assembly Drawing .............................................................. 4 4.1 Description ........... '.' . 4 4.2 Application Guidelines .................................................... 4 4.3 Requirements.............................................................. 4 5 Installation Drawing ............................................................. 5 5.1 Description. 5 5.2 Application Guidelines .................................................... 5 5.3 Requirements .............................................................. 5 6 Modifying Drawings .............................................................. 5 6.1 Altered Item Drawing ..................................................... 5 6.2 Selected Item Drawing .................................................... 6 6.3 Modification Drawing ..................................................... 6 7 Arrangement Drawing.. 7 7.1 Description. 7 7.2 Application Guidelines.................................................... 7 7.3 Requirements