SIST EN 3386:2012
(Main)Aerospace series - Rings retaining, radial mounting, steel, phosphated
Aerospace series - Rings retaining, radial mounting, steel, phosphated
This European Standard defines the characteristics of radial mounting retaining rings, in steel, phosphated, for aerospace applications.
These retaining rings are used only when EN 3384 cannot be used for installation problems.
The phosphating restricts the use at temperatures not exceeding 200 °C.
Luft- und Raumfahrt - Sicherungsringe, radial montierbar, aus Stahl, phosphatiert
Diese Norm legt die Merkmale von radial montierbaren Sicherungsringen aus Stahl mit Phosphatbeschichtung
zur Anwendung in der Luft- und Raumfahrt fest.
Diese Sicherungsringe werden nur verwendet, wenn EN 3384 aufgrund von Installationsproblemen nicht
angewandt werden kann.
Die Phosphatbeschichtung beschränkt die Verwendung auf Temperaturen von nicht mehr als 200 °C.
Série aérospatiale - Anneaux d’arrêt, à montage radial, en acier, phosphatés
La présente Norme Européenne définit les caractéristiques des anneaux d’arrêt, à montage radial, en acier, phosphatés pour applications aérospatiales.
Ces anneaux d’arrêt sont seulement utilisés lorsque l'EN 3384 ne peut être employée pour des problèmes de montage.
La phosphatation limite l’utilisation à des températures ne dépassant pas 200 °C.
Aeronavtika - Varnostni obroči za radialno pritrditev, jekleni, fosfatirani
Ta standard določa lastnosti jeklenih fosfatiranih varnostnih obročev za radialno pritrditev za uporabo v aeronavtiki. Ti varnostni obroči se uporabljajo samo, če zaradi težav z inštalacijo ni mogoče uporabiti standarda EN 3384. Fosfatiranje omejuje uporabo na temperature, ki ne presegajo 200 °C.
General Information
Overview
SIST EN 3386:2012 is a European standard developed by CEN that specifies the characteristics of radial mounting retaining rings made of steel with a phosphated surface finish specifically for aerospace applications. These retaining rings are designed for use in situations where the installation of axial mounting rings under EN 3384 presents challenges. The phosphating process enhances corrosion resistance but limits the operating temperature to a maximum of 200 °C.
The standard ensures quality, uniformity, and compatibility within the aerospace industry, facilitating the manufacturing and deployment of reliable retaining rings critical for component retention in radial grooves.
Key Topics
- Scope: Applies exclusively to steel, phosphated radial retaining rings for aerospace purposes where axial installation is problematic.
- Materials: Retaining rings must be made from spring steel with hardness between 480 and 530 HV.
- Surface Treatment: Rings are phosphate coated according to EN 2793, Class A, and protected with grease or oil prior to storage to prevent corrosion.
- Dimensions: Precise geometric and mass specifications provided for diameters ranging from 8 mm to 30 mm, ensuring accurate fitment and interchangeability.
- Temperature Limitation: Due to phosphating, usage is restricted to environments not exceeding 200 °C.
- Marking: Complies with EN 2424 for aerospace product identification to maintain traceability and standardization.
- Installation: Mounting instructions and groove dimensions follow EN 3427 to ensure proper assembly in radial grooves.
Applications
SIST EN 3386:2012 retaining rings are critical components in aerospace assemblies where secure radial retention is required under stringent safety and performance standards. Key application areas include:
- Aircraft structural components requiring reliable locking of shafts, pins, or assemblies subjected to radial loads.
- Aerospace mechanical systems where axial mounting is impractical, and radial mounting provides a more feasible solution.
- Maintenance and repair operations necessitating standardized retaining rings that meet aerospace quality and safety requirements.
- Manufacturing of aerospace hardware involving precision-machined grooves designed according to EN 3427.
The standard supports aerospace manufacturers and maintenance providers by ensuring that retaining rings provide consistent performance, durability, and compatibility with existing aerospace hardware.
Related Standards
SIST EN 3386:2012 references and aligns with several complementary aerospace standards to provide a comprehensive framework for retaining ring specifications and usage:
- EN 3384: Aerospace series for axial mounting retaining rings in steel, phosphated – applicable when installation conditions allow for axial configurations.
- EN 3380: Technical specifications for aerospace retaining rings, offering detailed performance criteria and quality benchmarks.
- EN 2793: Defines phosphate coating processes and classification to enhance corrosion resistance of steel components.
- EN 3427: Establishes groove dimensions for external axial mounting retaining rings, also relevant for radial grooves in EN 3386 applications.
- EN 2424: Aerospace marking standards to ensure that all retaining rings are clearly identified and traceable in production and maintenance.
Benefits of Compliance
- Guarantees use of high-quality, aerospace-grade retaining rings with proven material hardness and surface protection.
- Enables safe and reliable radial retention under specified temperature conditions, critical in aerospace operating environments.
- Facilitates industry-wide standardization, reducing defects, and simplifying supply chains and maintenance logistics.
- Enhances interchangeability and compatibility of components across manufacturers and operators within the aerospace sector.
By adhering to SIST EN 3386:2012, aerospace companies ensure robust component retention solutions that meet strict regulatory and safety requirements, supporting the long-term reliability of aerospace systems.
Frequently Asked Questions
SIST EN 3386:2012 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Rings retaining, radial mounting, steel, phosphated". This standard covers: This European Standard defines the characteristics of radial mounting retaining rings, in steel, phosphated, for aerospace applications. These retaining rings are used only when EN 3384 cannot be used for installation problems. The phosphating restricts the use at temperatures not exceeding 200 °C.
This European Standard defines the characteristics of radial mounting retaining rings, in steel, phosphated, for aerospace applications. These retaining rings are used only when EN 3384 cannot be used for installation problems. The phosphating restricts the use at temperatures not exceeding 200 °C.
SIST EN 3386:2012 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.
You can purchase SIST EN 3386:2012 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.RVIDWLUDQLLuft- und Raumfahrt - Sicherungsringe, radial montierbar, aus Stahl, phosphatiertSérie aérospatiale - Anneaux d’arrêt, à montage radial, en acier, phosphatésAerospace series - Rings retaining, radial mounting, steel, phosphated49.030.50Podložke in drugi blokirni elementiWashers and other locking elementsICS:Ta slovenski standard je istoveten z:EN 3386:2012SIST EN 3386:2012en01-maj-2012SIST EN 3386:2012SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 3386
March 2012 ICS 49.030.50 English Version
Aerospace series - Rings retaining, radial mounting, steel, phosphated
Série aérospatiale - Anneaux d'arrêt, à montage radial, en acier, phosphatés
Luft- und Raumfahrt - Sicherungsringe, radial montierbar, aus Stahl, phosphatiert This European Standard was approved by CEN on 24 September 2011.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, 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, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 3386:2012: ESIST EN 3386:2012
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