LPR 7320. 1I - Effective Date 2015-05-01 - Expiration Date 2020-04-30

Oct 24, 2026

Engineering Drawing System directive for NASA Langley Research Center defines engineering drawing preparation, use, and interpretation procedures. It establishes a uniform yet flexible system, including a standard drawing numbering scheme (Engineering Drawing Files) and a drawing and documentation control approach. The directive specifies applicability to LaRC personnel and supporting contractors, cites governing standards (e.g., ASME Y14.100), lists applicable documents and forms, and includes rules for precedence and cancellation of the prior CID 7320.1.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages15

Reading Time38 min

AccessFree to download

PREFACE

P.1 PURPOSE

P.2 APPLICABILITY

P.3 AUTHORITY

P.4 APPLICABLE DOCUMENTS AND FORMS

P.5 MEASUREMENT/VERIFICATION

P.6 CANCELLATION

TABLE OF CONTENTS

1 ADMINISTRATIVE PROCEDURES

1.1 Scope

1.2 Maintenance of Engineering Drawing Directive

1.3 Engineering Drawing Files

1.4 Drawing Changes

1.5 Drawing Obsolete/Cancellation Procedure

1.6 Security Classification

2 ENGINEERING DRAWING REQUIREMENTS

2.1 Size and Format

2.2 Basic Requirements

3 DRAWING AND DOCUMENTATION CONTROL

3.1 Definition

3.2 Applicability

3.3 Drawing Media Types

3.4 Release Approval

3.5 Approval Process

LPR 7320. 1I Effective Date: May 1, 2015 Expiration Date: April 30, 2020 Langley Research Center Engineering Drawing System National Aeronautics and Space Administration Responsible Office: Engineering Directorate PREFACE P.1 PURPOSE a. The engineering drawing practices and procedures set forth in this directive are based on established Government-industry standards, supplemented where necessary by a minimum of requirements peculiar to the NASA Langley Research Center (LaRC) . b. The purpose of this directive is to provide a uniform but flexible system of drawing preparation , use , and interpretation. A standard drawing numbering system , Engineering Drawing Files (EDF) , and drawing and documentation control system are included. This directive will be maintained by the Engineering Drawing System Committee with representatives from selected organizations. c. Unless otherwise noted herein , in the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. P.2 APPLICABILITY This directive is applicable to all engineering drawings generated by LaRC personnel and their supporting service contractors. P.3 AUTHORITY ASME-Y14 .100 , “Engineering Drawings Practices” P.4 APPLICABLE DOCUMENTS AND FORMS The standards listed below, in addition to those listed in ASME-Y14 .100 , are requirements for generating engineering drawings. Unless identified by date , the edition, including addenda and code cases , in effect at the start of the design shall apply. a. MIL-STD-403, “Preparation for and Installation of Rivets and Screws, Rocket, Missile, and Airframe Structures” b. ANSI B4 .1-1967 , “Preferred Limits and Fits for Cylindrical Parts” c. NAS 523 , “Fastener Code” d. AWS A1 .1-2001 , “Metric Practice Guide for the Welding Industry” e. AWS. A2 .4-2007,“Standard Symbols for Welding, Brazing, and Nondestructive Examination” f. DoD 5220.22-M,“National Industrial Security Program Operating Manual” g. NPR 1600.1 ,“NASA Security Program Procedural Requirements” h. LAPD 1150.2 , “Councils, Boards, Panels, Committees, Teams, and Groups” i. LPR 1740.4 , “Facility System Safety Analysis and Configuration Management” j. LPR 5300 . 1,“Product Assurance Plan” k. LF 33,“Drawing Record Card” l. LF 219, “Configuration Change Request (CCR)” P.5 MEASUREMENT/VERIFICATION None P.6 CANCELLATION This LPR cancels CID 7320.1 , dated April 1 , 2014. Original signed on file May 1, 2015 Acting Associate Director Date Distribution: Approved for public release via the Langley Management System; distribution is unlimited. TABLE OF CONTENTS 1 ADMINISTRATIVE PROCEDURES ................................................................... 5 1.1 Scope ....................................................................................................... 5 1.2 Maintenance of Engineering Drawing Directive ................................................... 5 1.3 Engineering Drawing Files ................................................................................. 5 1.4 Drawing Changes ............................................................................................... 7 1.5 Drawing Obsolete/Cancellation Procedure .......................................................... 9 1.6 Security Classification ......................................................................................... 9 2 ENGINEERING DRAWING REQUIREMENTS ................................................. 10 2.1 Size and Format ................................................................................................ 10 2.2 Basic Requirements ........................................................................................... 12 3 DRAWING AND DOCUMENTATION CONTROL ...........................

FAQs

What is the purpose of this engineering drawing directive?

It provides a uniform but flexible system for drawing preparation, use, and interpretation, including a standard drawing numbering system and a drawing/documentation control approach.

Who does the directive apply to?

It applies to all engineering drawings generated by LaRC personnel and their supporting service contractors.

What happens if there is a conflict between this directive and cited references?

The text of this document takes precedence over the references cited, unless an applicable law or regulation is specifically exempted.

Oct 24, 2026

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