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

Status
Published
Publication Date
27-Mar-2012
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
23-Mar-2012
Due Date
28-May-2012
Completion Date
28-Mar-2012

Relations

Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026
Effective Date
28-Jan-2026

Overview

SIST EN 3386:2012 - Aerospace Series: Rings Retaining, Radial Mounting, Steel, Phosphated is a recognized European Standard developed by the European Committee for Standardization (CEN) for the aerospace industry. This standard specifies the characteristics and requirements for radial mounting retaining rings made from phosphated steel. The standard applies specifically to situations where installation constraints prevent the use of retaining rings defined in EN 3384. An important consideration for use is its temperature limitation, which restricts applications to environments not exceeding 200 °C due to the phosphated surface treatment.

SIST EN 3386:2012 is essential for manufacturers, suppliers, and engineers working with fasteners and locking elements in aerospace systems, ensuring interoperability and safety across European and international markets.

Key Topics

  • Product Scope: Focuses on radial mounting retaining rings suitable for aerospace applications where axial mounting is not feasible.
  • Material & Properties: Rings are constructed from spring steel with phosphating as the surface treatment, ensuring corrosion resistance and specific hardness.
  • Application Limits: Phosphated coating restricts the use of these rings to temperatures up to 200 °C.
  • Designation: Includes a standardized method for product identification and coding, allowing easy reference and traceability.
  • Performance & Compliance: Covers marking, testing, and documentation in accordance with related technical and aerospace series standards.
  • Mounting & Dimensions: Specifies configuration, dimensional tolerances, and intended groove mounting profiles for correct fit and performance.

Applications

SIST EN 3386:2012 retaining rings are primarily used as mechanical locking elements in aerospace assemblies where secure, radial retention is needed. Common practical applications include:

  • Aircraft and spacecraft interior and exterior assemblies
  • Components subject to axial loads, where axial mounting rings (EN 3384) are not installable due to design or spatial restrictions
  • Critical aerospace systems requiring reliable secondary locking elements for enhanced structural safety
  • Assemblies operating below 200 °C, taking advantage of the corrosion-resistant, phosphated surface

By adhering to SIST EN 3386:2012, aerospace manufacturers and maintenance providers ensure that components meet a harmonized quality baseline for safety and fitment, facilitate international supply chain compliance, and reduce the risk of part incompatibility.

Related Standards

For effective implementation and compliance, SIST EN 3386:2012 should be used alongside the following key aerospace standards:

  • EN 2424: Aerospace series - Marking of aerospace products (specifies marking systems and identification)
  • EN 3380: Aerospace series - Rings retaining - Technical specification (covers retention ring performance and acceptance criteria)
  • EN 3384: Aerospace series - Rings, retaining, external, axial mounting, steel, phosphated (for cases where axial mounting is possible or preferred)
  • EN 3427: Aerospace series - Groove dimensions for axial mounting external type retaining rings (provides relevant groove dimensions for reference)

Summary

SIST EN 3386:2012 is an important reference for aerospace retaining rings, detailing product requirements, marking, and application criteria to ensure safety and reliability in aerospace engineering. This standard is particularly vital when conventional axial mounting is not possible, supporting innovative designs and maintenance in accordance with stringent aerospace quality expectations.

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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.

SIST EN 3386:2012 has the following relationships with other standards: It is inter standard links to SIST EN 3427:2009, SIST EN 3384:2012, SIST EN 3380:2001, SIST EN 2424:2008. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.

SIST EN 3386:2012 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.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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