ISO 9156:1989

I NTE R NAT1 O NAL
IS0
STANDARD
First edition
1989-1 1-01
Aerospace - Nuts, anchor, self-locking, fixed,
90° corner, reduced series, with counterbore,
with MJ threads, coated or uncoated,
classification 1 100 MPa/235 OC,
1 100 MPa/315 OC or 1 100 MPa/425 OC -
Dimensions
Aéronautique et espace - Écrous à river, à freinage interne, à filetage MJ, fixes,
90°, série réduite, avec chambrage, revêtus ou non revêtus, de classification
#angle
1 100 MPal235 OC, 1 100 MPal315 OC ou 1 100 MPal425 OC - Dimensions
Reference number
IS0 9156 : 1989 (E)
IS0 9156 : 1989 (E)
Foreword
IS0 (the International Organization for Standardization) is a worldwide federation of
national standards bodies (IS0 member bodies). The work of preparing International
Standards is normally carried out through IS0 technical committees. Each member
body interested in a subject for which a technical committee has been established has
the right to be represented on that committee. International organizations, govern-
mental and non-governmental, in liaison with ISO, also take part in the work. IS0
collaborates closely with the International Electrotechnical Commission (IEC) on all
matters of eiectrotechnicai standardization.
Draft International Standards adopted by the technical committees are circulated to
the member bodies for approval before their acceptance as international Standards by
the IS0 Council. They are approved in accordance with IS0 procedures requiring at
least 75 % approval by the member bodies voting.
International Standard IS0 9156 was prepared by Technical Committee ISO/TC 20,
Aircraft and space vehicles.
Users should note that all International Standards undergo revision from time to time
and that any reference made herein to any other international Standard implies its
latest edition, unless otherwise stated.
O IS0 1989
All rights reserved. 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 0 CH-121 1 Genève 20 0 Switzerland
Printed in Switzerland
INTERNATIONAL STANDARD IS0 9156 : 1989 (E)
Aerospace - Nuts, anchor, self-locking, fixed, 90° corner,
reduced series, with counterbore, with MJ threads,
coated or uncoated, classification 1 I00 MPa/235 OC,
1 I00 MPa/315 OC or 1 100 MPa/425 OC - Dimensions
O Introduction
2 Field of ap
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