MIL-STD-100 Engineering Drawings S/S By Asme-Y14.100, Asme-Y14.24, Asme-Y14.35M, And Asme-14.34MThis standard, along with ASME Y14.100M, establishes the essential requirements and reference documents applicable to the preparation and revision of engineering drawings and associated lists for or by Departments and Agencies of the Department of Defense. ASME Y14.100M is the preferred requirements document for engineering drawing practices. This standard should only be used in lieu of ASME Y14.100M where the necessity for a DoD design activity is fully justified and Government logistics support is required

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MIL-STD-1OOG

CHAPTER 500

MARKINGS ON ENGINEERING DRAWINGS

500 General. This chapter and ASME Y14.100M establish requirements for application of markings on engineering drawings and associated lists. These markings are used in support of and in addition to graphics and text to convey information about the drawing, the list or items depicted thereon. The intent of this chapter is to standardize marking nomenclature, control

graphics of symbology, and indicate minimum requirements for management data that is currently mandatory for drawing and associated list maintenance and application by Government design or procuring activities.

501 Symbology. See Table I and ASME Y14.100M.

502 Specialized notes.

502.1 Hardness critical note. The following note shall be used for nuclear hardness critical items and processes:

THIS (enter the word DRAWING or PARTS LIST, as appropriate) DEPICTS HARDNESS CRITICAL ITEMS (HCIs) AND (OR) HARDNESS CRITICAL PROCESSES (HCPs). ALL CHANGES TO, OR PROPOSED SUBSTITUTIONS OF THESE HCIs OR HCPs SHALL BE EVALUATED BY (enter the engineering activity responsible for nuclear survivability.)

503 Ozone depleting chemicals note. The following note shall be used when the use of ozone depleting chemicals (see 6.5) is delineated on the drawing:

THIS (enter the word DRAWING or PARTS LIST, as appropriate) DEPICTS CLASS I OZONE DEPLETING CHEMICALS (ODCs).

504 Security classification and notation. Security classification and notations shall be in accordance with Appendix A.

505 Rights in data legends on drawings. Proprietary restrictions, such as limited rights and Government purpose license rights, shall be marked on applicable drawing sheets with the appropriate approved legend, as specified by the applicable subpart of the Defense Federal Acquisition Regulation Supplement (DFARS). Care should be taken to assure that the legend is delineated in the field of the drawing, within the margins. On drawings that are reproduced in segments, the legend should appear in each microfilm segment. Drawings in book-form need only delineate the legend on the title sheet.

506 Distribution Statements. Distribution Statements and associated Export Control Notices shall be in accordance with DoD Directive 5230.24. Distribution Statements shall be as specified by the Government design or procuring activity.