ASME B18.24:2004 pdf download Part Identifying Number (PIN) Code System Standard for B18 Fastener Products
1 INTRODUCTORY NOTES
1.1 Scope
1.1.1 This Standard is intended to provide all users (manufacturers, distributors, design and configuration, parts control. inventory control, test and maintenance functions) with the capability to identify externally threaded, internally threaded, and nonthreaded fastener products by a preselected order of coding as specified herein.
1.1.2 The B18 PIN is a self-contained code, with dis- tinct identification linkage to individual ASME B18 fas- tener product standards. The PIN code concept provides for direct traceability back to the applicable B18 prod- uct standard. In case of conflict with this document and the B18 product standard, the B18 product standard shall take precedence.
1.1.3 This Standard is not intended for use as a sub- stitute for the correct usage of the B18 standards for fas- tener selection and specification. The PIN code is in- tended as an alternative to the plain text product callout as prescribed in the “Designation” or “Ordering” sec- tion of the source B18 product standard. The existence of a PIN code for B18 fastener description is not intended to imply that all products described are available. ASME B18.24-2004
1 2 GENERAL GUIDANCE
2.1 Optional Coverage Each individual ASME B18 fastener product standard provides for optional B18 PIN coverage under “Desig- nation” or “Ordering” data.
2.2 Alpha “I” and “O” Alpha “I,” “O,” and “-” are not used in PIN field cod- ing configuration.
2.3 Characteristics The B18 PIN Code shall identify only those charac- teristics specified in the B18 product standards.
2.4 Succession of B18.24.1, B18.24.2, and B18.24.3 21 Character PIN Codes Appendices A and B provide instructions and re- sources for determining the superseding B18.24 18- character PIN code for any cancelled ASME B18.24.1, ASME B18.24.2, and ASME B18.24.3 21-character PIN code.
ASME B18.24:2004 pdf download
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