Types and Applications of Engineering Drawings

Engineering Drawing and Related Documentation Practices

AN A MERICAN NA TIONAL S T AND ARD

ASME Y14.24

ADOPTION NOTICE

ASME Y14.24, “DRAWINGS TYPES AND APPLICATIONS OF ENGINEERING DRAWINGS”, was adopted on

14 February 2000 for use by the Department of Defense (DoD). Proposed changes by DoD activities must be submitted to the DoD Adopting Activity: Commander, U.S. Army ARDEC, ATTN: RDAR-QES-E, Picatinny Arsenal, NJ 07806-5000. Copies of this document may be purchased from the American Society of Mechanical Engineers (ASME), Three Park Avenue New York, New York, United States, 10016-5990. https://www.asme.org/

Custodians: Adopting Activity:

Army — AR Army — AR

Navy — SA (Project DRPR-2012-001)

Air Force — 16 DLA — DH

Review Activities:

Army — AV, CR, MI, PT, TE, TM Navy — AS, CG, CH, MC, NP

Air Force — 04, 13, 99 DLA — IS

OSD — SE

Other — CM, MP, DC2, NS

NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at 752839 https://assist.dla.mil.

AMSC N/A AREA DRPR

DISTRIBUTION STATEMENT A. Approved for public release, distribution is unlimited

ASME Y14.24-2012

[Revision of ASME Y14.24-1999 (R2009)]

ASME Y14.24-2012

[Revision of ASME Y14.24-1999 (R2009)]

Types and Applications of Engineering Drawings

Engineering Drawing and Related Documentation Practices

AN AMERICAN NA TIONAL S T AND ARD

Two Park Avenue • New York, NY • 10016 USA

Date of Issuance: April 5, 2013

This Standard will be revised when the Society approves the issuance of a new edition. There will be no written interpretations of the requirements of this Standard issued to this edition.

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This code or standard was developed under procedures accredited as meeting the criteria for American National Standards. The Standards 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 that provides an opportunity for additional public input from industry, academia, regulatory agencies, and the public-at-large.

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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 assumes 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 own responsibility.

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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.

The American Society of Mechanical Engineers Two Park Avenue, New York, NY 10016-5990

Copyright © 2013 by

THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS

All rights reserved Printed in U.S.A.

CONTENTS

Foreword v

Committee Roster vii

Correspondence With the Y14 Committee viii

iii

12-1 Identification Cross-Reference Drawing 42

13-1 Mechanical Schematic Diagram 43

1. Functional Block Diagram 44

2. Single-Line Schematic Diagram 45

3. Schematic Diagram 46

4. Connection Diagram 47

5. Interconnection Diagram (Point-to-Point, Simple) 48

6. Interconnection Diagram (Point-to-Point, Complex) 49

7. Interconnection Diagram (Cabling Type) 50

8. Logic Circuit Diagram 51

1. Wiring Harness Drawing 52

2. Cable Assembly Drawing 53

3. Indentured Relationships of Printed and Discrete Wiring Board Documentation (Typical) 54

4. Kit Drawing 55

5. Tube Bend Drawing (Pictorial/Coordinate) 56

6. Tube Bend Drawing (Tabular) 57

7. Matched Set Drawing 58

8. Contour Definition Drawing (Index) 59

9. Contour Definition Drawing (Pictorial) 60

10. Contour Definition Drawing 61

11. Software Installation Drawing 62

12. Alternate Parts Drawing (Cover Sheet Not Shown) 63

1. Drawing Tree 64

2. Block Entry Example (Mandatory Entries) 65

3. Block Entry Example (Includes Optional Entries) 65

Nonmandatory Appendix

A Selection of Drawing Types 67

iv

FOREWORD

Subcommittee 24, Types and Applications of Engineering Drawings, was formed in June 1973 as a subcommittee of the American Society of Mechanical Engineers (ASME) Committee Y14, Standards for Engineering Drawings and Related Documentation Practices. The Subcommittee was formed to prepare a standard that defined the accepted drawing types used to establish engineering requirements in the production and procurement of hardware.

The basis for this Standard was Chapter 200 of the military standard MIL-STD-100, Engineering Drawing Practices. Work on this Standard considered the types of engineering drawings most frequently used by business, industry, and government communities in the United States. This Standard attempts to serve the individual and combined needs of these communities and ensure consistency of application and interpretation.

On this basis, 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 requirements best suited for a national standard. Members of the Y14.24 Subcommittee represented a cross-section of American industry and the Department of Defense (DoD). Liaison with technical societies such as the National Defense Industrial Association (NDIA), Aerospace Industries Association (AIA), Electronic Industries of America (EIA), and the Society of Automotive Engineers (SAE International) provided technical support.

Drawing definitions are intended to permit preparation by any suitable method (manual, computer-aided, photographic, etc.); therefore, preparation techniques or methods of reproduction are not described.

The original edition of ASME Y14.24M was approved as an American National Standard on November 3, 1989. It was adopted and approved for use by the DoD on March 30, 1990. It was reaffirmed in 1996 without change.

Upon release of the original edition, it was referenced by the DoD as a replacement of the majority of Chapter 200 of MIL-STD-100E, which was released September 30, 1991. Input received from the DoD user community indicated that additional detail and clarification were needed to ensure understanding and application of the requirements when this Standard is invoked on government contracts.

Subcommittee 24 was reformed and began work on revising the Standard at a meeting in Garland, Texas from October 8 through October 10, 1991. ASME Y14.24 was approved as an American National Standard on June 24, 1999. It was reaffirmed in 2004 without change. Work on this revision began in September 2002.

The following is a summary of the significant changes incorporated in this revision:

1. Definitions were relocated to section 3, para. 1.2 was added, and section 1 was redesignated accordingly.

2. Paragraph 1.3 (former para. 1.4) was revised to separate preparation methods from formats and to clarify the relationship between ASME Y14.24 and ASME Y14.41.

3. Paragraph 1.10 was added to address drawing hierarchy.

4. Definitions of drawing tree, type designation, and Design Activity Identification (DAI) were added.

5. The definition and use of the term “FAA-PMA” were deleted.

6. The term “unique identifier” and all variables of it used with the term “identifier” were deleted.

7. The term “descriptive identifier” was deleted to agree with changes to ASME Y14.100-2012, clarifying that a descriptive identifier may be used as a PIN.

8. Former para. 13.11 and former Figs. 43 and 44 were deleted.

9. Section 16 and Figs. 16-1, 16-2, and 16-3 were added.

10. Paragraph 15.5 (former para. 13.5) was revised to add reference to ASME Y14.31, to delete requirements located in ASME Y14.31, and to delete former Fig. 34.

    
    

    v

11. Figure A-1 Notes were revised to replace the terms “contractor” and “subcontractor” with the terms “design activity” and “subdesign activity,” respectively.

Commendation is extended to the companies and the DoD departments and agencies for sponsoring participants in this activity and to those whose earlier efforts provided the basis for this Standard. The success of this effort can be attributed to their demonstrated interest, coopera- tion, and support.

Coordination of this Standard with the International Organization for Standardization (ISO/TC10/SC1) is intended to help enhance world understanding of the various types of draw- ings in use within the United States.

Suggestions for the improvement of this Standard are welcome. They should be sent to The American Society of Mechanical Engineers, Attn.: Secretary, Y14 Standards Committee, Two Park Avenue, New York, NY 10016-5990.

This revision was approved as an American National Standard on November 14, 2012.

vi

ASME Y14 COMMITTEE

Engineering Drawing and Related Documentation Practices

(The following is the roster of the Committee at the time of approval of this Standard.)

STANDARDS COMMITTEE OFFICERS

F. Bakos, Chair

W. A. Kaba, Vice Chair

F. Constantino, Secretary

A. R. Anderson, Dimensional Dynamics, LLC

F. Bakos, Consultant

1. V. Burleigh, Consultant

   STANDARDS COMMITTEE PERSONNEL

   1. F. McCarthy, Raytheon Missile Systems

      P. J. McCuistion, Ohio University

      J. D. Meadows, James D. Meadows & Associates, Inc.

   2. Constantino, The American Society of Mechanical Engineers

D. E. Day, Tec-Ease, Inc.

K. Dobert, Siemens PLM Software

B. A. Harding, Purdue University

D. H. Honsinger, Consultant

W. A. Kaba, Spirit AeroSystems, Inc.

A. Krulikowski, Effective Training, Inc.

M. E. Meloro, Northrop Grumman Corp.

H. W. Oakes, United States Air Force

N. H. Smith, Spirit AeroSystems, Inc.

1. J. Stahl, Caterpillar, Inc.

2. Stern, United States Army

K. E. Wiegandt, Sandia National Laboratories

R. G. Wilhelm, University of North Carolina

B. A. Wilson, The Boeing Co.

SUBCOMMITTEE 24 — TYPES AND APPLICATIONS OF ENGINEERING DRAWINGS

R. D. Green, Chair, The Boeing Co.

L. G. Davis, Consultant

J. A. Gagnon, Hamilton Sundstrand Corp.

B. Germany, Raytheon Co.

W. Gold, The Boeing Co.

D. M. Hagler, L-3 Communications, Integrated Systems

J. B. Hoskins, The Boeing Co.

W. A. Kaba, Spirit AeroSystems, Inc.

C. N. Markt, Lockheed Martin

1. M. Nelson, Consultant

2. W. Oakes, United States Air Force

J. H. Sena, Lockheed Martin Space System Co.

R. H. Settle, Naval Surface Warfare Center, Dahlgren Division

N. Stern, United States Army

M. W. Woodworth, Consultant

E. F. Zwettler, Rolls-Royce Corp.

vii

CORRESPONDENCE WITH THE Y14 COMMITTEE

General. ASME Standards are developed and maintained with the intent to represent the consensus of concerned interests. As such, users of this Standard may interact with the Committee by proposing revisions and attending Committee meetings. Correspondence should be addressed to:

Secretary, Y14 Standards Committee

The American Society of Mechanical Engineers Two Park Avenue

New York, NY 10016-5990

https://go.asme.org/Inquiry

Proposing Revisions. Revisions are made periodically to the Standard to incorporate changes that appear necessary or desirable, as demonstrated by the experience gained from the application of the Standard. Approved revisions will be published periodically.

The Committee welcomes proposals for revisions to this Standard. Such proposals should be as specific as possible, citing the paragraph number(s), the proposed wording, and a detailed description of the reasons for the proposal, including any pertinent documentation.

Proposing a Case. Cases may be issued for the purpose of providing alternative rules when justified, to permit early implementation of an approved revision when the need is urgent, or to provide rules not covered by existing provisions. Cases are effective immediately upon ASME approval and shall be posted on the ASME Committee Web page.

Requests for Cases shall provide a Statement of Need and Background Information. The request should identify the standard, the paragraph, figure or table number(s), and be written as a Question and Reply in the same format as existing Cases. Requests for Cases should also indicate the applicable edition(s) of the standard to which the proposed Case applies.

Attending Committee Meetings. The Y14 Standards Committee regularly holds meetings or telephone conferences, which are open to the public. Persons wishing to attend any meeting or telephone conference should contact the Secretary of the Y14 Standards Committee or check our Web site at https://cstools.asme.org/csconnect/.

viii

ASME Y14.24-2012

TYPES AND APPLICATIONS OF ENGINEERING DRAWINGS

1. GENERAL

   1. Scope

      This Standard defines the types of engineering draw- ings most frequently used to establish engineering requirements. It describes typical applications and mini- mum content requirements. Drawings for specialized engineering disciplines (e.g., marine, civil, construction, optics, etc.) are not included in this Standard. It is essen- tial that this Standard be used in close conjunction with ASME Y14.34, ASME Y14.35M, ASME Y14.41, and ASME Y14.100.

      
      

   2. Conventions

      The following conventions are guidance used in this and other ASME Y14 standards.

      1. Mandatory, Nonmandatory, Guidance, and Optional Words

         1. The words “shall” and “will” establish a manda- tory requirement.

         2. The words “should” and “may” establish a recom- mended practice.

         3. The words “typical,” “example,” “for reference,” or the Latin abbreviation “e.g.” indicate suggestions given for guidance only.

         4. The word “or” used in conjunction with a manda- tory requirement or a recommended practice indicates that there are two or more options for complying with the stated requirement or practice.

      2. Cross-Reference of Standards. Cross-reference of standards in the text with or without a date following the standard identity is interpreted as follows:

         1. Reference to other ASME Y14 standards in the text without a date following the standard identity indicates the issue of the standard as identified in the References section shall be used to meet the requirement.

         2. Reference to other ASME Y14 standards in the text with a date following the standard identity indicates that only that issue of the standard shall be used to meet the requirement.

      3. Invocation of Referenced Standards. The fol- lowing examples define the invocation of a standard when specified in the References section (section 2) and referenced in the text of this Standard:

         1. When a referenced standard is cited in the text with no limitations to a specific subject or paragraph(s)

            of the standard, the entire standard is invoked. For exam- ple, “dimensioning and tolerancing shall be in accor- dance with ASME Y14.5” is invoking the complete standard because the subject of the standard is dimen- sioning and tolerancing and no specific subject or para- graph(s) within the standard are invoked.

         2. When a referenced standard is cited in the text with limitations to a specific subject or paragraph(s) of the standard, only the paragraph(s) on that subject is invoked. For example, “assign part or identifying num- bers in accordance with ASME Y14.100” is only invoking the paragraph(s) on part or identifying numbers because the subject of the standard is engineering drawing prac- tices and part or identifying numbers is a specific subject within the standard.

         3. When a referenced standard is cited in the text without an invoking statement such as “in accordance with,” the standard is for guidance only. For example, “for gaging principles, see ASME Y14.43” is only for guidance and no portion of the standard is invoked.

      4. Parentheses Following a Definition. When a definition is followed by a standard referenced in paren- theses, the referenced standard is the controlling stan- dard for the definition.

      5. Notes. Notes depicted in this Standard in ALL UPPERCASE letters are intended to reflec