ISO INTERNATIONAL STANDARD 8399-2 First edition 1998-12-01 Aerospace Accessory drives and mounting flanges (Metric series) - Part 2: Dimensions Aéronautique et espace Fixation et entrainement des équipements (série métrique) - Partie 2: Dimensions ISO Reference number ISO 8399-2:1998(E) by IHS under lic Not for Resale ISO 8399-2:1998(E) Foreword IsO (the International Organization for Standardization) is a worldwide federation of national standards bodies (isO member bodies). The work of preparing International Standards is normally carried out through isO technical committees. Each member body interested in a subject for which a technical committee has been established has 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 8399-2 was prepared by Technical Committee ISO/TC 20, Aerospace, Subcommittee SC 12, Mechanical system parts. IsO 8399 consists of the following parts, under the general title Aerospace - Accessory drives and mounting flanges (Metric series): Part 1: Design criteria Part 2: Dimensions @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 InternationalOrganizationforStandardization Casepostale56·CH-1211Geneve20·Switzerland Internet [email protected] Printed in Switzerland onal Organization for Standardizatior Not for Resale INTERNATIONAL STANDARD @ISO ISO 8399-2:1998(E) Aerospace Accessory drives and mounting flanges (Metric series) - Part 2: Dimensions 1 Scope This part of isO 8399 specifies the dimensions of couplings for accessory drives and mounting flanges with quick attach/detach provisions primarily intended for use in aircraft gearboxes and engine accessories. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of most recent editions of the standards indicated below. Members of IEC and isO maintain registers of currently valid InternationalStandards ISO 286-2:1988, ISO system of limits and fits - Part 2: Tables of standard tolerance grades and limit deviations for holes and shafts. IsO 1302:1992, Technical drawings — Method of indicating surface texture. IsO 2768-1:1989, General tolerances — Part 1: Tolerances for linear and angular dimensions without individual tolerance indications. IsO 3601-1:1988, Fluid systems - Sealing devices— O-rings— Part 1: Inside diameters, cross-sections, tolerances and size identification code. IsO 4156:1981, Straight cylindrical involute splines - Metric module, side fit - Generalities, dimensions and inspection. and surface texture parameters. IsO 8399-1:1998, Aerospace —Accessory drives and mounting flanges (Metric series)Part 1: Design criteria. Copyright International Organization for Standardization Not for Resale