SIST EN 3746:2004

Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHD

This standard specifies the characteristics of O-rings in fluorosilicone rubber (FVMQ), hardness 80 IRHD for aerospace applications.

Luft- und Raumfahrt - O-Ringe aus Floursilicon-Elastomer (FVMQ) - Härte 80 IRHD

Diese Norm legt die Eigenschaften von O Ringen aus Fluorsilicon-Elastomer (FVMQ), Härte 80 IRHD, für Anwendungen in der Luft- und Raumfahrt fest.

Joints toriques en élastomere fluorosilicone

Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHD

General Information

• Status: Withdrawn
• Publication Date: 30-Apr-2004
• Withdrawal Date: 19-Jan-2009
• ICS: 49.025.40 - Rubber and plastics
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 9900 - Withdrawal (Adopted Project)
• Start Date: 16-Jan-2009
• Due Date: 08-Feb-2009
• Completion Date: 20-Jan-2009
• Ref Project: EN 3746:2003 - Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHD

Relations

• Replaced By: SIST EN 3746:2009 - Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHD
• Effective Date: 01-Mar-2009

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHDLuft- und Raumfahrt - O-Ringe aus Floursilicon-Elastomer (FVMQ) - Härte 80 IRHDJoints toriques en élastomere fluorosiliconeAerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Hardness 80 IRHD49.025.40Guma in polimerni materialiRubber and plasticsICS:Ta slovenski standard je istoveten z:EN 3746:2003SIST EN 3746:2004en01-maj-2004SIST EN 3746:2004SLOVENSKI
STANDARD



SIST EN 3746:2004



EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 3746January 2003ICS 49.025.40English versionAerospace series - O-rings, in fluorosilicone rubber (FVMQ) -Hardness 80 IRHDThis European Standard was approved by CEN on 2 June 2002.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 Management Centre 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 Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and UnitedKingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 3746:2003 ESIST EN 3746:2004



EN 3746:2003 (E)2ContentspageForeword.31Scope.32Normative references.33Application.33.1Typical use.33.2Temperature range.44Required characteristics.44.1Configuration - Dimensions - Tolerances – Masses.44.1.1Configuration code A.44.1.2Configuration code B.54.1.3Configuration code C.64.1.4Configuration code D.74.1.5Configuration code E.94.2Material.105Surface imperfections.106Designation.107Marking.108Technical specification.10SIST EN 3746:2004



EN 3746:2003 (E)3ForewordThis document (EN 3746:2003) 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 receivedthe approval of the National Associations and the Official Services of the member countries of AECMA, prior to itspresentation to CEN.This European Standard shall be given the status of a national standard, either by publication of an identical text orby endorsement, at the latest by July 2003, and conflicting national standards shall be withdrawn at the latest byJuly 2003.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingcountries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal,Slovakia, Spain, Sweden, Switzerland and the United Kingdom.1 ScopeThis standard specifies the characteristics of O-rings in fluorosilicone rubber (FVMQ), hardness 80 IRHD foraerospace applications.2 Normative referencesISO 3601-1Fluid systems - Sealing devices - O-rings - Part 1 : inside diameters, cross-sections, tolerances andsize identification codeEN 3376Aerospace series - Limits of surface imperfections of elastomeric toroidal sealing rings (O-rings) 1)EN 3747Aerospace series - O-rings, in fluorosilicone rubber (FVMQ) - Technical specification 1)EN 3827Aerospace series - Fluorosilicone rubber (FVMQ) - Hardness 80 IRHD 2)3 Application3.1 Typical useThese O-rings are intended to be used in air, mineral and synthetic oil and fuel systems.NOTE: Not to be used with phosphoric ester type hydraulic fluids (permanent or temporary immersion).
1)Published as AECMA Prestandard at the date of publication of this standard2)In preparation at the date of publication of this standardSIST EN 3746:2004



EN 3746:2003 (E)43.2 Temperature range- Continuous service: from -55 °C to + 150 °C ;- Intermitent service: from -55 °C to + 200 °C.4 Required characteristics4.1 Configuration - Dimensions - Tolerances – MassesDimensions and tolerances are in millimetres.4.1.1 Configuration code ASection diameter d2 = 1,8 :
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