ISO INTERNATIONAL STANDARD 4095 Second edition 1998-03-15 Aerospace Bihexagonal drives Wrenching configuration Metric series Aéronautique et espace -Entrainements bihexagonaux - Série métrique Reference number ISO 4095:1998(E) E"eqr[tkijvgf"d["WPG.'E1"gpqxc."8I"4:226"Ocftkf.'Urckp*cm'tki ISO 4095:1998(E) Foreword ISO(theInternationalOrganizationforStandardization)is aworldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through IsO on that committee. International organizations, governmental and non- governmental, in liaison with isO, also take part in the work. sO 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 4095 was prepared by Technical Committee ISO/TC 20, Aircraft and space vehicles, Subcommittee SC 4, Aerospace fastener systems. This second edition cancels and replaces the first edition (ISO 4095:1978), of whichitconstitutesatechnicalrevision. @ISO1998 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 OrganizationforStandardization Case postale 56 : CH-1211 Geneve 20 · Switzerland Internet [email protected] X.400 C=ch; a=400net; p=iso; o=isocs; S=central Printed in Switzerland ii "3:'22<39<62"WVE"424 ravinti Infi ISO 4095:1998(E) INTERNATIONAL STANDARD @ ISO Aerospace Bihexagonal drives Wrenching configuration Metric series 1 Scope This International Standard specifies the metric wrenching configuration dimensions of bihexagonal drives. This is a design standard. 2 Normative reference The following standard contains provisions which, through reference in this text, constitute provisions of this International Standard.At the time of publication,the edition indicated was valid.All standards are subject to revision, and parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent edition of the standard indicated below. Members of IEC and IsO maintain registers of currently valid International Standards. IsO 286-2:1988, ISO system of limits and fits - Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts. 3 Configuration and dimensions See figure 1 and table 1. Dimensions and tolerances are expressed in millimetres. actual profile falls within the maximum and minimum material conditions shown in figure 1. Dimensions are prior to forming the locking element on self-locking nuts. 4 Designation The drive designation shall be as follows: S04095-05 Wrenching dash number (see table 1)