FOREWORD

A|D|S was formed by the merger of the Society of British Aerospace Companies (SBAC), the Defence Manufacturers Association (DMA) and the Association of Police and Public Security Suppliers (APPSS) on 1st October 2009 to provide a new, more powerful and influential body to promote Advancing the UK Aerospace, Defence and Security Industries.

The legal obligations and copyright authority of all standards issued by SBAC are therefore assigned / transferred to ADS Group Limited.

A|D|S is a non-profit making body made up of members from the Aerospace, Defence Manufacturers and Security Industries. These Standards are produced by A|D|S with the assistance of, and for the benefit of the Aerospace Industry as part of a continuous programme of Standardisation for Aerospace application under the control of the Technical Standards Committee of A|D|S.

A|D|S Standards are published as part of the series of A|D|S Aerospace Industry Standards, and where appropriate, additional manufacturing and inspection requirements are issued as Reference Sheets (RS) or Technical Specifications (TS). It is the responsibility of those using or specifying a Standard to ensure that the product, process or manufacturer so used or specified is appropriate for the task or role in question. A|D|S wishes to draw special attention to the fact that Technical Specifications (TS) include testing and procedures by which a user or Design Authority can establish whether a particular manufacturer, prima facie, has the capability to produce hardware in accordance with the appropriate drawings and related specifications.

A|D|S, its servants or representatives accept no responsibility for the continued quality of hardware items produced against the relevant drawings and specifications, this responsibility remains with the user.

Whilst A|D|S takes all reasonable care in the preparation of all Standards, neither A|D|S, its officers, employees, servants, agents or representatives shall have any responsibility or liability whatsoever with respect to any act or omission (whether negligent or not) of whatsoever nature of, or in connection with, the preparation of the Standards or any part thereof. These responsibilities are those of the user or Design Authority. Users of A|D|S Standards agree that any such liability on the part of A|D|S is excluded to the maximum extent permitted by law. A|D|S Standards may be changed from time to time, and both users and manufacturers of these parts should ensure that they are in possession of the latest issue of the Standards and supporting documentation before adoption or the commencement of production.

It is recommended that TS260, Metallic Materials List of Alternative Material Standards be consulted prior to manufacture of A|D|S products.

Each Standard sheet in the series is a photographic or electronic reproduction of a master drawing and references to scales are not necessarily correct. A Master Index to all of these Standards is published separately.

All references to Standards include reference to RS and TS publications.

Details of this and any further information can be obtained from A|D|S.

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©2011 ADS Group Limited. The information in this document is copyright and the property of ADS Group Limited. It shall not be copied, or communicated to a third party, or used, for any purpose other than that for which it is supplied without the express written consent of ADS Group Limited.