ASD-STAN PREN 4138-2014 Aerospace series Screws pan head offset cruciform recess coarse tolerance normal shank medium length thread in alloy steel cadmium plated Classification 1 1.pdf
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1、ASD-STAN STANDARD NORME ASD-STAN ASD-STAN NORM prEN 4138 Edition P 2 June 2014 PUBLISHED BY THE AEROSPACE AND DEFENCE INDUSTRIES ASSOCIATION OF EUROPE - STANDARDIZATION Rue Montoyer 10 - 1000 Brussels - Tel. + 32 2 775 8126 - Fax. + 32 2 775 8131 - www.asd-stan.orgICS: Supersedes edition P 1 of Marc
2、h 1994 and will supersede EN 4138:2009 Descriptors: ENGLISH VERSION Aerospace series Screws, pan head, offset cruciform recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated Classification: 1 100 MPa (at ambient temperature) / 235 C Srie arospatiale Vis tte cyli
3、ndrique, empreinte cruciforme dporte, tige normale tolrance large, filetage moyen, en acier alli, cadmies Classification : 1 100 MPa ( temprature ambiante) / 235 C Luft- und Raumfahrt Flachkopfschrauben, mit Flgelkreuzschlitz, mittlere Gewindelnge, aus legiertem Stahl, verkadmet Klasse: 1 100 MPa (b
4、ei Raumtemperatur) / 235 C This “Aerospace Series“ Prestandard has been drawn up under the responsibility of ASD-STAN (The AeroSpace and Defence Industries Association of Europe - Standardization). It is published for the needs of the European Aerospace Industry. It has been technically approved by
5、the experts of the concerned Domain following member comments. Subsequent to the publication of this Prestandard, the technical content shall not be changed to an extent that interchangeability is affected, physically or functionally, without re-identification of the standard. After examination and
6、review by users and formal agreement of ASD-STAN, it will be submitted as a draft European Standard (prEN) to CEN (European Committee for Standardization) for formal vote and transformation to full European Standard (EN). The CEN national members have then to implement the EN at national level by gi
7、ving the EN the status of a national standard and by withdrawing any national standards conflicting with the EN. Edition approved for publication 1st June 2014 Comments should be sent within six months after the date of publication to ASD-STAN Mechanical Domain Copyright 2014 by ASD-STAN prEN 4138:2
8、014 (E) 2 Contents Page Foreword 2 1 Scope 3 2 Normative references 3 3 Required characteristics . 4 4 Designation 7 5 Marking . 7 6 Technical specification . 8 Annex A (informative) Standard evolution form . 9 Foreword This standard was reviewed by the Domain Technical Coordinator of ASD-STANs Mech
9、anical Domain. After inquiries and votes carried out in accordance with the rules of ASD-STAN defined in ASD-STANs General Process Manual, this standard has received approval for Publication. prEN 4138:2014 (E) 3 1 Scope This standard specifies the characteristics of screws, pan head, offset crucifo
10、rm recess, coarse tolerance normal shank, medium length thread, in alloy steel, cadmium plated. Classification: 1 100 MPa 1) / 235 C 2) 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For date
11、d references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2133, Aerospace series Cadmium plating of steels with specified tensile strength 1 450 MPa, copper, copper alloys and nickel alloys EN 2137, Stee
12、l FE-PL75 1 100 MPa Rm 1 250 MPa Bars De 100 mm Aerospace series 3) EN 2424, Aerospace series Marking of aerospace products EN 2442, Steel FE-PL711 1 100 MPa Rm 1 300 MPa Bars and wires De 25 mm Aerospace series 4) EN 3514, Aerospace series Steel FE-PL711 Hardened and tempered 1 100 MPa Rm 1 300 MPa
13、 Bar and wire for bolts De 25 mm 5) EN 9100, Aerospace series Quality Management Systems Requirements for Aviation, Space and Defense Organizations EN 9133, Aerospace series Quality management systems Qualification procedure for aerospace standard parts ISO 3353-1, Aerospace Lead and runout threads
14、Part 1: Rolled external threads ISO 5855-2, Aerospace MJ threads Part 2: Limit dimensions for bolts and nuts ISO 7689, Aerospace Bolts, with MJ threads, made of alloy steel, strength class 1 100 MPa Procurement specification ISO 7913, Aerospace Bolts and screws, metric Tolerances of form and positio
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