SIST EN 2414:2019

Aerospace series - Washers, chamfered, with counterbore, in alloy steel, cadmium plated

This document specifies the characteristics of chamfered washers, with counterbore, in alloy steel, cadmium plated, for maximum operating temperature 235 °C.

Luft- und Raumfahrt - Stulpscheiben, aus legiertem Stahl, verkadmet

Série aérospatiale - Rondelles, fraisées, avec chambrage, en acier allié, cadmiées

Aeronavtika - Podložke, gladke, z ugreznjeno izvrtino, iz kadmiranega legiranega jekla

Ta dokument določa značilnosti gladkih podložk z ugreznjeno izvrtino, iz kadmiranega legiranega jekla za najvišjo delovno temperaturo 235 °C.

General Information

• Status: Published
• Publication Date: 05-Jun-2019
• ICS: 21.060.30 - Washers, locking elements
• ICS: 49.030.50 - Washers and other locking elements
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 10-May-2019
• Due Date: 15-Jul-2019
• Completion Date: 06-Jun-2019
• Ref Project: EN 2414:2019 - Aerospace series - Washers, chamfered, with counterbore, in alloy steel, cadmium plated

Overview

SIST EN 2414:2019 is a European standard developed by CEN specifying chamfered washers with counterbore made from alloy steel, cadmium plated, intended for aerospace applications. This standard covers washers designed to operate at temperatures up to 235 °C, ensuring high reliability and performance in demanding aviation and aerospace environments. The washers provide critical mechanical support and secure fastening in aerospace assemblies, supporting safety and durability standards required in the industry.

Key Topics

• Material Specification
  Washers are manufactured from alloy steels complying with EN 2205, EN 2438, or EN 3513, ensuring mechanical strength and durability essential for aerospace components.

• Surface Treatment
  The washers are cadmium plated as per EN 2133, offering corrosion resistance and wear protection. The plating thickness ranges from 7 µm to 10 µm on contact surfaces, ensuring adherence to aerospace quality expectations.

• Dimensions and Tolerances
  Detailed dimensions and tolerances are provided in millimeters and illustrated in Figure 1 and Table 1 of the standard, covering nominal diameters from 8 mm to 25 mm. These specifications guarantee interchangeability and compatibility across aerospace components.

• Maximum Operating Temperature
  The washers are certified for use at temperatures up to 235 °C, enabling their application in environments subject to moderate thermal stress.

• Marking and Designation
  Marking requirements follow EN 2424 style G, which includes the standard identification and batch quantity, ensuring traceability and compliance with aerospace product tracking requirements.

• Quality Assurance
  Compliance with EN 9100 is mandated for quality management, aligning with the stringent standards of the aviation, space, and defense sectors.

Applications

SIST EN 2414:2019 washers are widely used in aerospace engineering for:

• Aircraft Assembly
  Providing reliable fastening and load distribution in critical structures such as airframes, engine components, and control systems.

• Spacecraft Components
  Ensuring secure mechanical connections in spacecraft equipment exposed to extreme conditions.

• Defense Systems
  Utilized in military aerospace equipment to meet demanding operational standards for strength, corrosion resistance, and safety.

• Maintenance and Repair
  Offering standardized replacement parts that maintain integrity and performance within aerospace maintenance workflows.

These chamfered washers with counterbore design reduce stress concentrations and improve load distribution, critical in aerospace applications where durability and safety are paramount.

Related Standards

To fully implement and comply with SIST EN 2414:2019, the following related standards are significant:

• EN 2133 – Cadmium plating of steels for aerospace, specifying surface treatment requirements.
• EN 2205, EN 2438, EN 3513 – Alloy steel material specifications ensuring mechanical properties.
• EN 2424 – Marking of aerospace products for traceability.
• EN 9100 – Quality management systems tailored for aerospace, space, and defense organizations.

These interconnected standards facilitate comprehensive quality control, material performance assurance, and logistics traceability across aerospace manufacturing and supply chains.

---

Keywords: aerospace washers, chamfered washers, alloy steel washers, cadmium plated washers, aerospace fasteners, EN 2414, aerospace standards, aerospace manufacturing, aerospace quality assurance, high-temperature washers

Standards Content (Sample)

SLOVENSKI STANDARD
01-julij-2019
Aeronavtika - Podložke, gladke, z ugreznjeno izvrtino, iz kadmiranega legiranega
jekla
Aerospace series - Washers, chamfered, with counterbore, in alloy steel, cadmium
plated
Luft- und Raumfahrt - Stulpscheiben, aus legiertem Stahl, verkadmet
Série aérospatiale - Rondelles, fraisées, avec chambrage, en acier allié, cadmiées
Ta slovenski standard je istoveten z: EN 2414:2019
ICS:
21.060.30 Podložke, varovalni elementi Washers, locking elements
49.030.50 Podložke in drugi blokirni Washers and other locking
elementi elements
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 2414
EUROPEAN STANDARD
NORME EUROPÉENNE
May 2019
EUROPÄISCHE NORM
ICS 49.030.50
English Version
Aerospace series - Washers, chamfered, with counterbore,
in alloy steel, cadmium plated
Série aérospatiale - Rondelles, chanfreinées, avec Luft- und Raumfahrt - Stulpscheiben, aus legiertem
chambrage, en acier allié, cadmiées Stahl, verkadmet
This European Standard was approved by CEN on 15 July 2018.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,
Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 2414:2019 E
worldwide for CEN national Members.

Contents
Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 4
5 Designation. 7
6 Marking . 7
7 Quality assurance . 7

European foreword
This document (EN 2414:2019) has been prepared by the Aerospace and Defence Industries
Association of Europe - Standardization (ASD-STAN).
After enquiries and votes carried out in accordance with the rules of this Associa
...