3.8 DRAFTING SYMBOLS
3.8.1 Drafting Symbol Definitions. Each drafting symbol shall be defined in a note or legend on the drawing or by reference to an approved source. Symbols depicted in this Manual are listed as follows:
See SECTION 6 for ZONE CROSS REFERENCE symbols.
See SECTION 9 for USE & SIZE OF FLAGNOTE (Delta) symbols.
See SECTION 5 for DIMENSIONING AND TOLERANCING AND GEOMETRIC DIMENSIONING AND TOLERANCING symbols.
See SECTION 13 for SURFACE TEXTURE symbols.
See SECTION 14 for WELDING symbols.
See SECTION 18 for ARCHITECTURAL symbols.
See SECTION 22 for ELECTRICAL and ELECTRONIC symbols.
3.8.2 Graphic Symbols, Designations, Letter Symbols and Abbreviations. (Listed Alphabetically) Graphic symbols, designations, letter symbols and abbreviations used on engineering drawings shall be in accordance with the standards indicated. Whenever any of the above is not covered by approved standards, they may be used provided they are explained on each drawing or referenced to another document. The referenced document for non-standard symbols shall be furnished with the engineering drawings.
3.8.2.1 Flow Chart Symbols and Their Used in Micrographics. AIIM MS04.
3.8.2.2 Graphic Symbols for Aircraft Hydraulic and Pneumatic Systems. SAE AS1290.
3.8.2.3 Graphic Symbols for Electrical and Electronics Diagrams. IEEE STD 315 & Suppl IEEE STD 315a.
3.8.2.4 Graphic Symbols for Fluid Power Diagrams. ASME Y32.10 (INACTIVE).
3.8.2.5 Graphic Symbols for Logic Functions. IEEE STD 91 & Supplement IEEE STD 91a.
3.8.2.6 Graphic Symbols for Plumbing Fixtures Used in Architecture & Building Construction. ANSI Y32.4 (INACTIVE).
3.8.2.7 Letter Symbols. ASME Y10.3M (INACTIVE), IEEE STD 260.1 and IEEE STD 280.
3.8.2.8 Logic Circuit Diagrams. IEEE STD 991.
3.8.2.9 Mathematical Signs and Symbols. IEEE STD 260.3.
3.8.2.10 Mechanical Symbols. MIL-STD-17/1 (INACTIVE), ASTM F 856, ASTM F 1000, or ASME Y32.2.6 (INACTIVE) as applicable.
3.8.2.11 Mechanical Symbols for Aerospace craft and Spacecraft Diagrams. MIL-STD-17/2 (INACTIVE).
3.8.2.12 Nondestructive Testing Symbols. AWS A2.4.
3.8.2.13 Printed Board Description in Digital Form. IPC-D-350 or MIL-STD-28000.
3.8.2.14 Printed Wiring Drawings. IPC-2221A, IPC-2222, MIL-STD-2118 and IPC-T-50, as applicable.
3.8.2.15 Reference Designations for Electrical and Electronics Parts and Equipment. IEEE STD 200, IEEE STD 315 and Supplement IEEE STD 315a.
3.8.2.16 Ship Structural Symbols. MIL-STD-25.
3.8.2.17 Welding Symbols. ANSI/AWS A2.4 Together with Terms and Definitions AWS A3.0.
