EN 3014:2015
(Main)Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C
Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C
This European Standard specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications.
Classification: 1 100 MPa ) / 650 °C ).
NOTE FE-PA2601 is the new designation for FE-PA92HT, see TR 3900.
Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
Série aérospatiale - Ecrous à sertir, dentelés, à freinage interne, en acier résistant à chaud FE-PA2601 (A286) - Classification : 1 100 MPa (à température ambiante) / 650 °C
La présente Norme Européenne spécifie les caractéristiques des écrous à sertir, dentelés, à freinage interne, en FE-PA2601, pour les applications aérospatiales.
Classification : 1 100 MPa ) / 650 °C ).
NOTE FE-PA2601 est la nouvelle désignation pour FE-PA92HT, voir TR 3900.
Aeronavtika - Sidrne/utrdilne matice, samoblokirne, nazobčane, iz toplotnoodpornega jekla FE-PA2601 (A286) - Klasifikacija: 1100 MPa (pri okoljski temperaturi)/650 °C
Ta evropski standard določa lastnosti samoblokirnih nazobčanih sidrnih matic v FE-PA2601 za uporabo v aeronavtiki.
Razvrstitev: 1 100 MPa 1) / 650 °C 2).
OPOMBA: FE-PA2601 je nova oznaka za FE-PA92HT, glejte TR 3900.
General Information
Relations
Overview
EN 3014:2015 is a European standard developed by CEN specifying the technical requirements for aerospace-grade self-locking serrated shank nuts made of heat-resisting steel FE-PA2601 (also known as A286). This standard establishes the classification for nuts capable of withstanding 1,100 MPa tensile stress at ambient temperature and retaining functionality at temperatures up to 650 °C. Primarily intended for aerospace applications, EN 3014:2015 replaces the earlier EN 3014:2001 and ensures enhanced reliability for high-performance fastening components exposed to extreme thermal and mechanical conditions.
Key Topics
- Material Specification: The nuts are manufactured from FE-PA2601 (formerly FE-PA92HT), a heat-resistant stainless steel known for its high tensile strength and excellent elevated temperature performance.
- Design and Dimensions: The standard defines precise dimensional tolerances, including thread geometry, serration patterns, and nut shank sizes to guarantee secure locking and compatibility with aerospace-grade bolts.
- Self-Locking Feature: Serrated shank nuts incorporate out-of-round thread deformation and serrations that produce internal friction to prevent loosening under vibration or thermal cycling typical in aerospace environments.
- Classification: Rated for a minimum tensile strength of 1,100 MPa at room temperature and operational up to 650 °C, making them suitable for critical aerospace assemblies exposed to high stress and heat.
- Markings and Identification: Clear marking requirements are outlined, following EN 2424, to ensure traceability and identification of nuts during manufacturing and maintenance.
- Installation Guidelines: Installation procedures based on EN 3064 and EN 3065 minimize damage to materials and preserve locking performance, emphasizing careful consideration of notch sensitivity in substrates.
Applications
EN 3014:2015 nuts are engineered for use in aerospace structures and components where both high mechanical loads and elevated temperatures are present, such as:
- Aircraft engines and exhaust systems, which demand heat-resistant mechanical fastening components.
- Structural assemblies in airframes requiring secure, vibration-resistant fasteners.
- High-temperature aerospace environments, such as turbine assemblies where stability of fastening under thermal expansion is critical.
- Maintenance and repair of aerospace fasteners, ensuring compatibility and adherence to established safety norms.
By following EN 3014:2015, manufacturers and aerospace engineers ensure the use of high-quality, standardized shank nuts delivering consistent mechanical performance and safety in demanding aerospace contexts.
Related Standards
EN 3014:2015 is part of a comprehensive aerospace fastener standard series developed by CEN and ASD-STAN, complementing:
- EN 2399 – Aerospace series for heat-resisting steel FE-PA2601 bars used in forged bolts.
- EN 3004 – Self-locking MJ threaded nuts made from FE-PA2601 steel.
- EN 3064 – Procedures for installing self-locking serrated shank nuts to optimize performance.
- EN 3065 – Design recommendations for installation holes compatible with self-locking serrated shank nuts.
- ISO 5855-2 – Limit dimensions for MJ threads used in aerospace bolts and nuts ensuring thread interchangeability.
These interconnected standards support aerospace manufacturing quality control by defining materials, dimensions, installation methods, and testing, all crucial for reliable aerospace fastener applications.
Keywords: EN 3014:2015, aerospace shank nuts, self-locking serrated nuts, heat resisting steel FE-PA2601, A286 steel nuts, aerospace fasteners standard, high temperature nuts, aviation-grade nuts, aerospace installation procedures, self-locking fasteners, serrated nuts aerospace, high tensile strength nuts, aerospace component standards.
Frequently Asked Questions
EN 3014:2015 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C". This standard covers: This European Standard specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa ) / 650 °C ). NOTE FE-PA2601 is the new designation for FE-PA92HT, see TR 3900.
This European Standard specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa ) / 650 °C ). NOTE FE-PA2601 is the new designation for FE-PA92HT, see TR 3900.
EN 3014:2015 is classified under the following ICS (International Classification for Standards) categories: 49.030.30 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3014:2015 has the following relationships with other standards: It is inter standard links to EN 3014:2001, EN 3014:2025. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 3014:2015 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 CEN standards.
Standards Content (Sample)
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Aerospace series - Shank nuts, self-locking, serrated, in heat resisting steel FE-PA2601
(A286) - Classification: 1 100 MPa (at ambient temperature) / 650 °C
Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem
Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
Série aérospatiale - Ecrous à sertir, dentelés, à freinage interne, en acier résistant à
chaud FE-PA2601 (A286) - Classification : 1 100 MPa (à température ambiante) / 650 °C
Ta slovenski standard je istoveten z: EN 3014:2015
ICS:
49.030.30 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 3014
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2015
ICS 49.030.30 Supersedes EN 3014:2001
English Version
Aerospace series - Shank nuts, self-locking, serrated, in heat
resisting steel FE-PA2601 (A286) - Classification: 1 100 MPa (at
ambient temperature) / 650 °C
Série aérospatiale - Ecrous à sertir, dentelés, à freinage Luft- und Raumfahrt - Einnietmuttern, selbstsichernd,
interne, en acier résistant à chaud FE-PA2601 (A286) - verzahnt, aus hochwarmfestem Stahl FE-PA2601 (A286) -
Classification : 1 100 MPa (à température ambiante) / 650 Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
°C
This European Standard was approved by CEN on 5 December 2014.
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, 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: Avenue Marnix 17, B-1000 Brussels
© 2015 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3014:2015 E
worldwide for CEN national Members.
Contents
Page
European foreword .3
1 Scope .4
2 Normative references .4
3 Required characteristics .5
3.1 Configuration – Dimensions – Tolerances — Masses .5
3.2 Materials .5
4 Designation .6
5 Marking .6
6 Technical specification .6
7 Installation .6
Annex A (informative) Standard evolution form .7
European foreword
This document (EN 3014:2015) 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 Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of ASD,
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 December 2015, and conflicting national standards shall be withdrawn
at the latest by December 2015.
This document supersedes EN 3014:2001.
Attentio
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