EN 2327:2006
(Main)Aerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions
Aerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions
This standard specifies the characteristics of lock washers with radial serrations primarily intended for flight control rods.
These lock washers are intended to immobilise the rod end in relation to the rod body, whilst allowing a precise positional adjustment.
Luft- und Raumfahrt - Sicherungen, radial verzahnt, aus legiertem Stahl, verkadmet für Bediengestänge von Flugsteuerungen - Maße
Diese Norm legt die Eigenschaften von radial verzahnten Sicherungen fest, die vor allem für Bediengestänge von Flugsteuerungen bestimmt sind.
Diese Sicherungen dienen dazu, den Stangenkopf gegenüber dem Rohrkörper zu arretieren und gleichzeitig eine genaue Lageeinstellung zu ermöglichen.
Série aérospatiale - Freins à stries radiales en acier allié, cadmiés pour bielles de commandes de vol - Dimensions
Aeronavtika - Zaščitne podložke, radialno ozobljene, iz legiranega jekla, s kadmijevo prevleko, za kontrolne palice pri krmiljenju - Mere
General Information
- Status
- Published
- Publication Date
- 16-May-2006
- Withdrawal Date
- 29-Nov-2006
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3 - Mechanical
- Current Stage
- 9093 - Decision to confirm - Review Enquiry
- Start Date
- 31-May-2017
- Completion Date
- 14-Apr-2025
Relations
- Replaces
EN 2327:1987 - Aerospace series - Washers, lock with radial serrations in alloy steel - Dimensions - Effective Date
- 22-Dec-2008
Overview
EN 2327:2006 is a CEN/AECMA aerospace standard specifying the dimensions and characteristics of lock washers with radial serrations in alloy steel, cadmium plated, specifically for flight control rods. These lock washers are designed to immobilise the rod end relative to the rod body while permitting precise positional adjustment. The standard supersedes EN 2327:1987 and was approved for harmonised use across CEN member countries.
Key topics and technical requirements
- Scope & purpose: Defines form, fit and functional requirements for radial-serrated lock washers used in aerospace flight control rod assemblies.
- Dimensions and configuration: Detailed geometries are given in the standard’s Figures 1–3, with numeric values and tolerances in Tables 1 and 2. Dimensions apply after cadmium plating.
- Materials: Specified steels are referenced to EN 2438 (bars) and EN 2439 (forgings) for appropriate tensile properties and aerospace suitability.
- Surface treatment: Cadmium plating is required per EN 2133 with a thickness of 10 µm to 20 µm.
- Surface finish: Pre-plating surface roughness is specified as Ra = 3.2 µm.
- Design codes and marking: Washer elements are coded (A = rod body side, B = rod end side, C = assembly). Example designation format: EN2327A08. Each washer and its packaging must carry the identity block marking; marking must not impair washer characteristics.
- Qualification: Product qualification and quality management follow aerospace part procedures per EN 9133.
- Tolerances and serrations: Number and geometry of radial serrations, thickness, radii and angular details are specified to ensure engagement and locking performance.
Applications
- Primary use: flight control rod assemblies in aircraft and aerospace systems where repeatable locking and fine positional adjustment are required.
- Secondary uses: Other aerospace linkage or actuation systems requiring lightweight, corrosion-protected locking elements with predictable mechanical behaviour.
Who uses this standard
- Aerospace manufacturers and OEMs designing flight control linkages
- Fastener and standard parts suppliers producing aerospace lock washers
- Quality, procurement and approval engineers specifying components for certification
- Maintenance organisations and technical authorities ensuring conformity to approved parts lists
Related standards
- EN 2133 - Cadmium plating for steels (plating thickness and process requirements)
- EN 2438 / EN 2439 - Steel specifications for bars and forgings used in washers
- EN 9133 - Qualification procedure for aerospace standard parts
EN 2327:2006 provides the dimensional, material and finishing rules that ensure interchangeable, qualified lock washers for critical flight control rod applications.
Frequently Asked Questions
EN 2327:2006 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions". This standard covers: This standard specifies the characteristics of lock washers with radial serrations primarily intended for flight control rods. These lock washers are intended to immobilise the rod end in relation to the rod body, whilst allowing a precise positional adjustment.
This standard specifies the characteristics of lock washers with radial serrations primarily intended for flight control rods. These lock washers are intended to immobilise the rod end in relation to the rod body, whilst allowing a precise positional adjustment.
EN 2327:2006 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 2327:2006 has the following relationships with other standards: It is inter standard links to EN 2327:1987. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 2327:2006 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.Luft- und Raumfahrt - Sicherungen, radial verzahnt, aus legiertem Stahl, verkadmet für Bediengestänge von Flugsteuerungen - MaßeSérie aérospatiale - Freins à stries radiales en acier allié, cadmiés pour bielles de commandes de vol - DimensionsAerospace series - Washers, lock, with radial serrations in alloy steel, cadmium plated for flight control rods - Dimensions49.030.50Podložke in drugi blokirni elementiWashers and other locking elementsICS:Ta slovenski standard je istoveten z:EN 2327:2006SIST EN 2327:2009en,de01-april-2009SIST EN 2327:2009SLOVENSKI
STANDARDSIST EN 2327:20011DGRPHãþD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 2327May 2006ICS 49.030.50Supersedes EN 2327:1987
English VersionAerospace series - Washers, lock, with radial serrations in alloysteel, cadmium plated for flight control rods - DimensionsSérie aérospatiale - Freins à stries radiales en acier allié,cadmiés pour bielles de commandes de vol - DimensionsLuft- und Raumfahrt - Sicherungen, radial verzahnt, auslegiertem Stahl, verkadmet für Bediengestänge vonFlugsteuerungen - MaßeThis European Standard was approved by CEN on 26 October 2005.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 2327:2006: ESIST EN 2327:2009
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