ISO INTERNATIONAL STANDARD 6149-3 Second edition 2006-02-15 Connections for hydraulic fluid power and general use Ports and stud ends with is0 261 metric threads and O-ring sealing - Part 3: Dimensions, design, test methods and requirements for light-duty (L series) stud ends Raccordementspourtransmissionshydrauliquesetapplications jointtorique Partie3:Dimensions,conception,methodes d'essaietexigences des élementsmalesde série legere (serieL) Reference number ISO 6149-3:2006(E) @ISO 2006 ISO 6149-3:2006(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobe's licensing policy, this file may be printed or viewed but accepts no liability in this area. Adobe is a trademark of Adobe Systems Incorporated. Details of the software products used to create this PDF file can be found in the General Info relative to the file; the PDF-creation the unlikely event that a problem relating to it is found, please inform the Central Secretariat at the address given below. ISO2006 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, ISO's member body in the country of the requester. ISO copyright office Case postale 56.CH-1211Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland : @ ISO 2006 - All rights reserved ISO6149-3:2006(E) Contents Page Foreword IV Introductior 1 Scope 2 Normativereferences 3 Terms and definitions. 4 Dimensions 5 Requirements 6 O-rings 7 Testmethods. 8 Designationofstudends. 9 Identification 10 Identification statement (reference to this part of ISO 6149). Bibliography .... ^"ghts reserved ii ISO 6149-3:2006(E) Foreword Iso (the International Organization for Standardization) is a worldwide federation of national standards bodies technical committees. Each member body interested in a subject for which a technical committee has been International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/lEC Directives, Part 2 The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75% of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. IsO shall not be held responsible for identifying any or all such patent rights. ISO6149-3waspreparedbyTechnicalCommitteeISO/TC131,Fluidpowersystems,SubcommitteeSC4, Connectorsand similarproductsand components. revised. Iso 6149 consists of the following parts, under the general title Connections for hydraulic fluid power and generaluse-Portsand stud endswith/sO261metric threads andO-ringsealing: Part 1: Ports with truncated housing for O-ring seal Part2:Dimensions,design,test methods andrequirementsforheavy-duty (S series)stud ends -Part 3:Dimensions, design, test methods and requirements for light-duty (L series) stud ends Part 4:Dimensions, design,testmethods andrequirements of externaland internal hexportplugs @ ISO 2006-All rights reserved ISO 6149-3:2006(E) Introduction In hydraulic fluid power systems, power is transmitted and controlled through a liquid under pressure within an Components are connected through their threaded ports by stud ends on fluid conductor connectors to tubes and pipes orto hose connectors and hoses. For threaded ports and stud ends specified in new designs in hydraulic fluid power applications, ISO/TC 131/SC 4 recommends that the ISO 6149 series be used because these International Standards ports and stud ends in accordance with the ISO 1179 series, ISO 9974 series and ISO 11926 series not be used for new designs in hydraulic fluid power applications; these Internati