ASME B18.24.3:1998 pdf download

12-14-2022 comment

ASME B18.24.3:1998 pdf download PART IDENTIFYING NUMBER(PIN) CODE SYSTEM STANDARD FOR B18 NONTHREADED PRODUCTS
1 INTRODUCTORY NOTES
1.1 Scope
1.1.1 This Standard is intended to provide all users(manufacturers,distributers, design and configuration.parts control,inventory control,test and maintenancefunctions) with the capability to identify nonthreadedfastener products by a preselected order of coding asspecified herein.
1.1.2 The B18 PIN coverage is a self-containedcode with distinct identification linkage to individuaASME BI8 nonthreaded fastener product standards.The PIN code concept provides for direct traceabilityback to the applicable BI8 product standard.
2 GENERALGUIDANCE
2.1
Each individual ASME B18 nonthreaded fastenerproduct Standard provides for optional B18 PIN cover-age under“Designation”or “Ordering”data.
2.2
Alpha “! and “O”are not used in PIN field codeconfiguration.
2.3
The B18 PIN Code shall identify only those character-istics specified in the B18 product standards.
3 PIN ORDER OF CODING BY FIELDS
3.1 Field 1一 Fastener Family forNonthreaded Product
1 Alpha character.
3.2 Field 2 – B18 Standard identification
Four numeric characters and/or with fourth characteras “N” representing last three or four number charactersof B18 Standard designation after “B18”as applicableThe”N”represents a no-entry condition.
NOTE: If after the B8 Standard number designation there is anumber of digits less than three, one or two zeros are added tommake up the four character designation. For example: B18.3300N or B18.3.1M =310N or B18.2.3.10M – 2310.
3.3 Field 3一 Fastener Type
Two AIpha Characters relating to Field 2, B18 Stan-dard Identification See Matrix A.
3.4 Field 4 — Dimensional/OtherCharacteristics
Six Alpha/Numeric characters: total of six charactersin varied order relating to Field 3, Fastener Type.”N”or“NN”appearing as last character is identified as ano-entries condition. See Matrix B.
3.5 Field 5 — Material and Treatment
Fjve Aipha/Numeric characters. See Matrix C.Coversboth direct American Society for Testing and Materials(ASTM) source reference and Aluminum Association(AA), Iron and Steel Society (ISS), Society of Automotive Engineers,Inc.(SAE), Copper Development Asso-ciation(CDA)as identified in SAE HS-1086/ASTMDS-56 Metals and Alloys in the Unified NumberingSystem (UNS) by UNS designation and Industrial Fas-teners Institute (IFI) source rcfcrencc accordingly.“Nor“NN” is identified as a no-entries condition.
The Amcrican Socicty for Testing and Materials(ASTM),100 Barr Harbor Drive,West Conshohocken,PA 19428-2959Aluminum Association (AA), 900 19th Street NW,Ste300Washington,DC 20006Iron and Steel Society (ISS), 410 Commonwealth Drive,Warrendale,PA15086-7512Society of Automotive Engineers (SAE),400 Common-wealth Drive,Warrendal.PA 15096-0001Copper Developmnent Association (CDA),260 MadisonAvenuc,New York,NY 10016Industrial Fasteners Institute (IFI), 1717 East 9th Street.Ste.1105,Ceveland,OH 44114-2879
3.6 Field 6一 Plating, Coating, andPassivation
Two Alpha characters. See Matrix D, Plating, Coat-ing,and Passivation.
3.7 Field 7 – Special Features
One Alpha or Numeric character

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