ISO INTERNATIONAL STANDARD 9634 First edition 1994-10-01 Aerospace Fluid systems Dimensions of plastic protective caps and plugs Aéronautique et espace - Systemes de fluides Dimensions des bouchonsetcapuchonsdeprotectionenmatiereplastique ISO Reference number ISO 9634:1994(E) E"eqr(ijigf'd"WPG.gpqxc.84:226"Ocftf.Urckp"cmtkjwtugtxgf+wp"Hgd3:245975"WVE4246 vintiInft ISO9634:1994(E) Foreword isO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work represented on that committee. International organizations, governmental and non-governmental, in liaison with isO, also take part in the work. IsO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. 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. International Standard ISO 9634 was prepared by Technical Committee iSO/TC 20, Aircraft and space vehicles, Subcommittee SC 10, Aerospace fluid systems and components. Annex A of this International Standard is for information only ISO 1994 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. International Organization for Standardization Case Postale 56 · CH-1211 Geneve 20 · Switzerland Printed in Switzerland ii uvinti1nff INTERNATIONAL STANDARD ISO ISO 9634:1994(E) Aerospace Fluid systems Dimensions of plastic protective caps and plugs 1 Scope 4 Protective plugs, with internal threads, for cone fittings This International Standard defines the configuration and specifies the dimensions of various types of The configuration and dimensions of plugs for 24° and plasticcapsandplugsusedfortheprotection,during 60° cone fittings shall be in accordance with figure 1 transit and storage, of openings in aerospace fluid and table 1. system components (smooth or threaded ports in ac- cessories, ends of pipes or hoses, pipe fittings, and port connections). The caps and plugs provide pro- 5 Protective plugs, with external tection for threads and sealing surfaces and prevent threads, for cone fittings the ingress of foreign matter (dust, etc.) into the openings. The configurationandthedimensionsofprotective plugs, with external threads, for 24° and 60° cone fit- 2 Definitions tings shall be in accordance with figure 2 and table 2. For the purposes of this International Standard, the following definitions apply. 6 Protective plugs, with external threads, for port connection 2.1 protective plug: Closure with internal or ex- ternal thread. The configuration and the dimensions of protective 2.2 protective cap: Non-threaded closure. plugs, with external threads, for port connection shall be in accordance with figure 3 and table 3. 3 Threads Protective caps for non-threaded holes Thediameter/pitchcombinationsofthethreadsfor of accessories and hoses (internal protective caps and plugs specified in this Inter- national Standard are those given in ISO 5855-3[1] for protection) and for tube ends (internal the plugs shown in clauses 4 and 5 and those given and external protection) in IS0 7320[2] for the plugs shown in clause 7. The tolerances on the threads should be specified in the The configuration and the dimensions of protective product standard such that they are compatible with caps for non-threaded holes of accessories and hoses the manufacturing process to be used and such that (internal protection) and for tube ends (internal and they will enable the items to be screwed fully home external protection) shall be in accordance with by hand. figure 4 and table 4. E'eqr[tkijvgf'd["WP