EN 3902:2016
(Main)Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series
Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series
This standard specifies the characteristics of washers for rivet assemblies, in aluminium alloy, anodized, metric series, for maximum operating temperature 120 °C, for aerospace applications.
Luft- und Raumfahrt - Scheiben für Nietverbindungen, aus Aluminiumlegierung, anodisiert, metrische Reihe
Série aérospatiale - Rondelles pour assemblages par rivets, en alliage d'aluminium, anodisées, série métrique
Aeronavtika - Podložke za zakovice iz aluminijeve litine, anodizirane, v metrskih merah
Ta standard določa lastnosti podložk za zakovice iz aluminijeve litine, anodiziranih, v metrskih merah, za najvišjo delovno temperaturo 120 °C v aeronavtiki.
General Information
- Status
- Published
- Publication Date
- 20-Dec-2016
- Withdrawal Date
- 29-Jun-2017
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 21-Dec-2016
- Completion Date
- 21-Dec-2016
Relations
- Refers
EN 2284:1991 - Aerospace series - Sulphuric acid anodizing of aluminium and wrought aluminium alloys - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Refers
EN 2090:2005 - Aerospace series - Aluminium alloy AL-P2024-T3 - Clad sheet and strip 0,3 mm <a <6 mm - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 3902:2016 is a European Standard developed by CEN, specifying the requirements for washers used in rivet assemblies made from anodized aluminium alloy, within the metric series. Designed for aerospace applications, these washers are suitable for environments with operating temperatures up to 120°C. The standard ensures alignment with recognized aerospace quality management systems and consistent product performance across the industry.
Key Topics
- Material Specification: EN 3902:2016 applies specifically to washers manufactured from aluminium alloys, which must be anodized. The referenced alloys and anodizing processes ensure lightweight strength and enhanced corrosion resistance for aerospace usage.
- Design Features: Washers under this standard follow metric sizing, with detailed requirements for configuration, dimensions, masses, and tolerances. Precise dimensions after surface treatment guarantee washer compatibility in rivet assemblies.
- Surface Treatment: All washers are subject to an anodizing process for increased durability and oxidation resistance, aligning with industry standards for aerospace-grade aluminium components.
- Quality Control: Manufacturers must adhere to stringent marking and traceability methods as well as the requirements of recognized quality assurance frameworks, such as EN 9100 for aerospace organizations.
- Designation System: Standardized identification for washers, including clear coding for product type and size (for example, EN3902-025), enhancing supply chain clarity and traceability.
Applications
EN 3902:2016 is primarily intended for use in the aerospace sector, where high standards for reliability, weight efficiency, and durability are essential. Key application areas include:
- Aircraft Assembly: Used in rivet assemblies for airframe sections, control surfaces, and other aircraft structures requiring lightweight yet robust fastening.
- Aerospace Components Manufacturing: Compliance with this standard is often required in the production of subassemblies and structural aerospace parts, particularly where aluminium rivets are used.
- Maintenance, Repair, and Overhaul (MRO): Ensures consistency for replacement washers in servicing aerospace systems, supporting long-term airworthiness and industry compliance.
Related Standards
To ensure full compliance and optimal integration, EN 3902:2016 references and aligns with several related standards, including:
- EN 2090: Aerospace series - Aluminium alloy AL-P2024- T3 Clad sheet and strip
- EN 2091: Aerospace series - Aluminium alloy 2024-T4 Clad sheet and strip
- EN 2284: Aerospace series - Sulphuric acid anodizing of aluminium and wrought aluminium alloys
- EN 2320: Aerospace series - Aluminium alloy 2024-T4 Drawn bar
- EN 2321: Aluminium alloy 2024-T3 Bars and sections (aerospace series)
- EN 2424: Marking of aerospace products
- EN 9100: Quality Management Systems - Requirements for Aviation, Space and Defence Organizations
These standards provide detailed requirements for materials, treatments, manufacturing processes, marking, and quality systems relevant to aerospace fasteners and associated components.
EN 3902:2016 ensures that washers for rivet assemblies in aerospace applications meet rigorous requirements for safety, performance, and traceability. Adherence to this standard supports supply chain efficiency, product reliability, and global standardization in aerospace manufacturing and maintenance.
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Frequently Asked Questions
EN 3902:2016 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series". This standard covers: This standard specifies the characteristics of washers for rivet assemblies, in aluminium alloy, anodized, metric series, for maximum operating temperature 120 °C, for aerospace applications.
This standard specifies the characteristics of washers for rivet assemblies, in aluminium alloy, anodized, metric series, for maximum operating temperature 120 °C, for aerospace applications.
EN 3902:2016 is classified under the following ICS (International Classification for Standards) categories: 49.030.50 - Washers and other locking elements. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3902:2016 has the following relationships with other standards: It is inter standard links to EN 2284:1991, EN 9100:2018, EN 2424:2008, EN 2090:2005, EN ISO 15877-5:2009, EN ISO 22391-5:2009, EN ISO 15874-5:2013/A1:2018, EN ISO 15874-5:2013, EN ISO 15876-5:2017. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 3902:2016 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Podložke za zakovice iz aluminijeve litine, anodizirane, v metrskih merahAerospace series - Washers for rivet assemblies, in aluminium alloy, anodized, metric series49.030.50Podložke in drugi blokirni elementiWashers and other locking elements49.025.20AluminijAluminiumICS:Ta slovenski standard je istoveten z:EN 3902:2016SIST EN 3902:2017en,fr,de01-marec-2017SIST EN 3902:2017SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3902
December
t r s x ICS
v {ä r u rä w r English Version
Aerospace series æ Washers for rivet assembliesá in aluminium alloyá anodizedá metric series Série aérospatiale æ Rondelles pour assemblages par rivetsá en alliage d 5aluminiumá anodiséesá série métrique
Luftæ und Raumfahrt æ Scheiben für Nietverbindungená aus Aluminiumlegierungá anodisiertá metrische ReiheThis European Standard was approved by CEN on
s t March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
u { r tã t r s x ESIST EN 3902:2017
Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Required characteristics . 4 4 Designation . 6 5 Marking . 6 6 Quality assurance . 6
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