SIST EN 3014:2026
(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 document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications.
Classification: 1 100 MPa /650 °C .
Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
No Scope available
Série aérospatiale - Écrous à sertir, dentelés, à freinage interne, en acier résistant à chaud FE-PA2601 (A286) - Classification : 1 100 MPa (à température ambiante)/650 °C
Le présent document spécifie les caractéristiques des écrous à sertir, dentelés, à freinage interne, en FE-PA2601, pour les applications aérospatiales.
Classification : 1 100 MPa /650 °C.
Aeronavtika - Sidrne/utrdilne matice, samoblokirne, nazobčane, iz toplotnoodpornega jekla FE-PA2601 (A286) - Klasifikacija: 1100 MPa (pri okoljski temperaturi)/650 °C
Ta dokument določa lastnosti samoblokirnih nazobčanih sidrnih/utrdilnih matic iz jekla FE-PA2601 za uporabo v aeronavtiki. Klasifikacija: 1100 MPa/650 °C.
General Information
- Status
- Published
- Public Enquiry End Date
- 14-Sep-2022
- Publication Date
- 07-Jan-2026
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 05-Jan-2026
- Due Date
- 12-Mar-2026
- Completion Date
- 08-Jan-2026
Relations
- Effective Date
- 28-Jan-2026
- Refers
SIST EN 3064:2001 - Aerospace series - Shank nuts, self-locking, serrated - Installation procedure - 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
- 18-Jan-2023
Overview
SIST EN 3014:2026 defines the requirements for self-locking, serrated shank nuts manufactured from heat-resisting steel FE-PA2601 (A286). Designed specifically for aerospace applications, these nuts provide secure fastening under high mechanical and thermal stress. The standard classifies these shank nuts for performance at 1 100 MPa tensile strength (at ambient temperature) and operational temperatures of up to 650 °C. This document facilitates a consistent approach to the selection, installation, and quality assurance of fasteners critical to aircraft and aerospace equipment.
Key keywords: self-locking shank nuts, FE-PA2601, A286 steel, aerospace fasteners, serrated nuts, heat resisting nuts, high-temperature nuts, 1100 MPa nuts, SIST standard.
Key Topics
- Material and Performance:
- Specifies use of heat resisting steel FE-PA2601 (A286) for enhanced durability in challenging environments.
- Classification: 1 100 MPa (ambient tensile strength) and sustained function at temperatures up to 650 °C.
- Design and Configuration:
- Covers styles, serration, dimensions, tolerances, and marking requirements.
- Outlines two primary nut styles, with form and some dimensional features at the manufacturer’s discretion as long as required performance is met.
- Marking and Traceability:
- Mandates product marking according to EN 2424 for traceability and quality compliance.
- Installation Procedures:
- Refers to EN 3064 and EN 3065 for correct installation methods and hole specifications to ensure optimal performance and avoid notch sensitivity issues.
Applications
- Aerospace Structures:
- Essential for aircraft assemblies where reliability under mechanical load and thermal cycling is critical, such as engine mounts, landing gear attachments, and structural joints.
- Satellite and Spacecraft:
- Used in assemblies where resistance to loosening due to vibration, extreme temperatures, and thermal expansion is essential to mission success.
- Aviation Maintenance & Manufacturing:
- Supports consistent replacement and assembly practices for maintenance, repair, and overhaul (MRO) operations in both civil and military aerospace sectors.
Practical Benefits:
- Security and Safety: Self-locking feature minimizes risk of loosening in high-vibration environments.
- Thermal Stability: Enables use in demanding temperatures, increasing component lifespan and reducing risk of failure.
- Standardization: Facilitates interchangeability and uniform quality in international supply chains.
Related Standards
Professionals referencing SIST EN 3014:2026 will also benefit from familiarity with accompanying and supporting standards:
- EN 2399: Covers material specifications for FE-PA2601 (X4NiCrTiMoV26-15) steel bars for forged bolts.
- EN 2424: Details marking methods for aerospace products, ensuring traceability.
- EN 3004: Provides technical specifications for self-locking nuts with MJ threads.
- EN 3064: Outlines installation procedures for self-locking, serrated shank nuts.
- EN 3065: Specifies installation hole requirements for correct fit and performance.
- ISO 5855-2: Defines limit dimensions for bolts and nuts with MJ threads in aerospace use.
Summary
SIST EN 3014:2026 is a vital reference for engineers and suppliers in the aerospace industry, supporting the safe, reliable, and standard application of self-locking, serrated shank nuts made from high-performance FE-PA2601 (A286) steel. By adhering to this standard, organizations ensure compliance with international best practices for fastener selection and installation in high-stress, high-temperature aerospace environments.
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Frequently Asked Questions
SIST EN 3014:2026 is a standard published by the Slovenian Institute for Standardization (SIST). 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 document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa /650 °C .
This document specifies the characteristics of self-locking serrated shank nuts in FE-PA2601, for aerospace applications. Classification: 1 100 MPa /650 °C .
SIST EN 3014:2026 is classified under the following ICS (International Classification for Standards) categories: 49.025.10 - Steels; 49.030.30 - Nuts. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 3014:2026 has the following relationships with other standards: It is inter standard links to SIST EN 2424:2008, SIST EN 3064:2001, SIST EN 3004:2001, SIST EN 2399:2008, SIST EN 3065:2001, SIST EN 840-6:2004+A1:2008, SIST EN 3639:2026, SIST EN 3014:2015. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
SIST EN 3014:2026 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 - Sidrne/utrdilne matice, samoblokirne, nazobčane, iz
toplotnoodpornega jekla FE-PA2601 (A286) - Klasifikacija: 1100 MPa (pri okoljski
temperaturi)/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
Luft- und Raumfahrt - Einnietmuttern, selbstsichernd, verzahnt, aus hochwarmfestem
Stahl FE-PA2601 (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C
Série aérospatiale - Écrous 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 3014:2025
ICS:
49.025.10 Jekla Steels
49.030.30 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 3014
EUROPEAN STANDARD
NORME EUROPÉENNE
December 2025
EUROPÄISCHE NORM
ICS 49.030.30 Supersedes EN 3014:2015
English Version
Aerospace series - Shank nut, self-locking, serrated, in heat
resisting steel FE-PA2601 (A286) - Classification: 1 100
MPa (at ambient temperature) / 650 °C
Série aérospatiale - Écrous 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
Classification : 1 100 MPa (à température (A286) - Klasse: 1 100 MPa (bei Raumtemperatur) /
ambiante)/650 °C 650 °C
This European Standard was approved by CEN on 5 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 3014:2025 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Required characteristics . 4
4.1 Configuration — Dimensions — Tolerances — Masses . 4
4.2 Materials . 4
5 Designation . 7
6 Marking . 7
7 Technical specification . 7
8 Installation . 7
Bibliography . 8
European foreword
This document (EN 3014:2025) 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
with
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