EN 6050:2025
(Main)Aerospace series - Pin, close tolerance, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050, conversion coating - Inch series
Aerospace series - Pin, close tolerance, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050, conversion coating - Inch series
This document specifies the characteristics of close tolerance pins, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050-T73 with chemical film, inch series, with a maximum operating temperature of 80 °C for aerospace application.
Luft- und Raumfahrt - Passniete für Quetschverriegelung mit reduziertem Senkkopf 100°, für Scherbeanspruchung, aus Aluminiumlegierung 7050, Schmierfilm behandelt - Zoll-Reihe
No Scope available
Série aérospatiale - Rivet de précision, à bague sertie, à tête fraisée 100° réduite, type cisaillement, en alliage d’aluminium 7050, revêtement de conversion - Série en inches
Le présent document spécifie les caractéristiques des rivets de précision, à bague sertie, à tête fraisée 100° réduite, type cisaillement, en alliage d’aluminium 7050-T73, à film sec, série en inches, avec une température maximale d'utilisation de 80 °C pour les applications aérospatiales.
Aeronavtika - Zatič, ozka toleranca, pritrdilni, 100° ugrezna glava, strižni tip, iz aluminijeve zlitine 7050, konverzijska prevleka - Palčne mere
Ta dokument določa lastnosti pritrdilnih zatičev z ozko toleranco, 100° ugrezna glava, strižnega tipa, iz aluminijeve zlitine 7050-T73 s kemično folijo, palčne mere, z najvišjo delovno temperaturo 80 °C za uporabo v aeronavtiki.
General Information
- Status
- Published
- Publication Date
- 23-Dec-2025
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/S 2 - Fasteners
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 24-Dec-2025
- Completion Date
- 24-Dec-2025
Relations
- 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
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 6050:2025 specifies requirements for close tolerance, swage locking pins with a 100° countersunk reduced head and shear type design in aluminium alloy 7050-T73 with a conversion (chemical) coating. These aerospace pins are designed for the inch series and have a maximum operating temperature of 80 °C. Developed under CEN (European Committee for Standardization), this standard ensures consistent quality and performance for components essential to aerospace structures, supporting safe and reliable assembly.
Key Topics
Pin Characteristics:
- Close tolerance for precise fit
- Swage locking mechanism for secure fastening
- 100° countersunk, reduced head for flush installations
- Shear type design suitable for specific load applications
- Fabrication from aluminium alloy 7050-T73 for high strength-weight ratio
- Conversion coating (chemical film) for corrosion resistance
Dimensional Requirements:
- Detailed dimensions, tolerances, and mass requirements for various pin diameters and grip lengths, ensuring compatibility and interchangeability in aerospace assemblies.
Surface Treatment and Lubrication:
- Use of MIL-DTL-5541 Type I or II conversion coatings; lubricant specification by SAE AS87132 or EN 6117 using cetyl alcohol
Mechanical Properties:
- Specified shear and tensile strengths to meet stringent aerospace safety requirements
- Compatibility with swage locking collars per EN 6051 and EN 6054
Identification and Marking:
- Marking methods per EN 2424 for traceability and compliance
Quality Assurance:
- Requirement for manufacturer compliance with EN 9100 or equivalent aerospace quality management system
- Qualification of products as per EN 9133, ensuring traceable manufacturing practices
Applications
EN 6050:2025 is widely used in the aerospace industry for applications requiring high reliability and integrity under shear load conditions. Typical uses include:
Aircraft structure assembly:
- Fastening of skin panels, structural frames, and sub-assemblies where flush, high-strength, and corrosion-resistant joints are essential
Aerospace equipment installation:
- Secure mounting of components within an aircraft where precision and minimal protrusion are required
Maintenance and repair:
- Replacement of critical fasteners during scheduled aircraft maintenance to ensure ongoing airworthiness
This standard is crucial for manufacturers, engineers, and procurement professionals involved in the specification, selection, or installation of aerospace fasteners. By adhering to EN 6050:2025, organizations optimize assembly performance, ensure compatibility with existing systems, and meet regulatory and quality standards within the aerospace sector.
Related Standards
- EN 6051: Aerospace series - Collar, swage locking, shear type, in aluminium alloy 3003, conversion coating - Inch series
- EN 6052: Aerospace series - Rivet-collar-system, aluminium alloy, shear type, inch series - Technical Specification
- EN 6054: Aerospace series - Collar, swage locking, shear type, in aluminium alloy 6061, conversion coating - Inch series
- EN 2424: Marking of aerospace products
- EN 9100: Quality Management Systems - Requirements for Aviation, Space and Defence Organizations
- EN 9133: Qualification Procedure for Aerospace Standard Products
- MIL-DTL-5541: Chemical Conversion Coatings on Aluminum and Aluminum Alloys
- SAE AS87132: Lubricant, Cetyl Alcohol, 1-Hexadecanol, Application to Fasteners
By following these and other relevant international standards, aerospace organizations ensure robust, safety-driven design and manufacturing practices for fastener systems.
Keywords: EN 6050, aerospace fasteners, swage locking pin, aluminium alloy 7050, conversion coating, close tolerance pin, aircraft fastening standard, countersunk head fastener, CEN, quality management system.
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Frequently Asked Questions
EN 6050:2025 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Pin, close tolerance, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050, conversion coating - Inch series". This standard covers: This document specifies the characteristics of close tolerance pins, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050-T73 with chemical film, inch series, with a maximum operating temperature of 80 °C for aerospace application.
This document specifies the characteristics of close tolerance pins, swage locking, 100° countersunk reduced head, shear type, in aluminium alloy 7050-T73 with chemical film, inch series, with a maximum operating temperature of 80 °C for aerospace application.
EN 6050:2025 is classified under the following ICS (International Classification for Standards) categories: 49.030.60 - Rivets; 49.060 - Aerospace electric equipment and systems. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 6050:2025 has the following relationships with other standards: It is inter standard links to EN 6054:2025, EN 2424:2008, EN 6052:2022, EN 6051:2025, EN ISO 10703:2021, EN ISO 20042:2021, EN ISO 13163:2022, EN ISO 13162:2021, EN ISO 22515:2021. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 6050:2025 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)
SLOVENSKI STANDARD
01-februar-2026
Aeronavtika - Zatič, ozka toleranca, pritrdilni, 100° ugrezna glava, strižni tip, iz
aluminijeve zlitine 7050, konverzijska prevleka - Palčne mere
Aerospace series - Pin, close tolerance, swage locking, 100° countersunk reduced head,
shear type, in aluminium alloy 7050, conversion coating - Inch series
Luft- und Raumfahrt - Passniete für Quetschverriegelung mit reduziertem Senkkopf 100°,
für Scherbeanspruchung, aus Aluminiumlegierung 7050, Schmierfilm behandelt - Zoll-
Reihe
Série aérospatiale - Rivets de précision, boulon serti, à tête fraisée 100° réduite,
cisaillement-type, en alliage d’aluminium 7050, film sec - Série en inches
Ta slovenski standard je istoveten z: EN 6050:2025
ICS:
49.025.20 Aluminij Aluminium
49.030.40 Zatiči, žeblji Pins, nails
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 6050
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 49.030.60
English Version
Aerospace series - Pin, close tolerance, swage locking, 100°
countersunk reduced head, shear type, in aluminium alloy
7050, conversion coating - Inch series
Série aérospatiale - Rivet de précision, à bague sertie, à Luft- und Raumfahrt - Passniete für
tête fraisée 100° réduite, type cisaillement, en alliage Quetschverriegelung mit reduziertem Senkkopf 100°,
d'aluminium 7050, revêtement de conversion - Série für Scherbeanspruchung, aus Aluminiumlegierung
en inches 7050, Schmierfilm behandelt - Zoll-Reihe
This European Standard was approved by CEN on 26 October 2025.
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye 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
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 6050:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements . 5
4.1 Configuration, dimensions, tolerances and mass. 5
4.2 Material and surface treatment . 6
4.3 Mechanical properties . 7
4.4 Pin version. 7
5 Designation . 8
6 Marking . 8
7 Technical specification . 8
8 Example of installation . 8
9 Quality management system . 9
Bibliography . 10
European foreword
This document (EN 6050:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by June 2026, and conflicting national standards shall be
withdrawn at the latest by June 2026.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
1 Scope
This document specifies the characteristics of close tolerance pins, swage locking, 100° countersunk
reduced head, shear type, in aluminium alloy 7050-T73 with chemical film, inch series, with a maximum
operating temperature of 80 °C for aerospace applications.
2 Normative references
The following do
...




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