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STANDARD
SIST EN 3709:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3709April 2006ICS 49.030.99 English VersionAerospace series - Wrenches and sockets, bi-hexagonal -Technical specificationSérie aérospatiale - Clé et douille bihexagonale -Spécification techniqueLuft- und Raumfahrt - Ringschlüssel undSteckschlüsseleinsätze, Doppelsechskant - TechnischeLieferbedingungenThis European Standard was approved by CEN on 3 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3709:2006: ESIST EN 3709:2009
EN 3709:2006 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Requirements.4 5 Test methods.5 6 Qualification and acceptance requirements.8 7 Marking, labelling and packaging.8
SIST EN 3709:2009
EN 3709:2006 (E) 3 Foreword This European Standard (EN 3709:2006) has been prepared by the European Association of Aerospace Manufacturers - Standardization (AECMA-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of AECMA, prior to its presentation to CEN. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2006, and conflicting national standards shall be withdrawn at the latest by October 2006. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.
SIST EN 3709:2009
EN 3709:2006 (E) 4 1 Scope This standard specifies the requirements to be complied with by wrenches and double-hex sockets intended for aerospace products. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1174 (all parts),
Assembly tools for screws and nuts — Driving squares. ISO 4095,
Aerospace — Bihexagonal drives — Wrenching configuration — Metric series. EN 9133,
Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts. 3 Terms and definitions For the purposes of this standard, the following terms and definitions apply. 3.1 lot a lot is composed of wrenches or sockets of the same type, originating from the same material defined by the same standard 4 Requirements 4.1 Materials The materials shall meet the required properties specified in the product standard. 4.2 Physical properties 4.2.1 Surface condition and appearance The wrenches and sockets shall be free from pits, deposits, forging burrs, cracks, splits, flashes and other defects likely to modify their properties and endurance or to injure users. The wrench handle shall allow an easy handling and its shape shall permit a correct guiding of the box end. The wrenches and the outer surface of the sockets shall have a polished, brushed or s
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