oSIST prEN 3240:2026

SLOVENSKI STANDARD
01-maj-2026
Aeronavtika - Matice, samozapiralne, vijačne, iz toplotnoodpornega jekla FE-
PA2601 (A286), brez prevleke - Klasifikacija: 1100 MPa (pri temperaturi
okolice)/425 °C
Aerospace series - Nut, self-locking, clip, in heat resisting steel FE PA2601 (A286),
uncoated - Classification: 1 100 MPa (at ambient temperature)/425 °C
Luft- und Raumfahrt - Klemmmutter, selbstsichernd, aus hochwarmfestem Stahl FE
PA2601 (A286), blank - Klasse: 1 100 MPa (bei Raumtemperatur)/425 °C
Série aérospatiale - Écrous à pincer, à freinage interne, en acier résistant à chaud FE-
PA2601 (A286), non revêtus - Classification : 1 100 MPa (à température ambiante)/425
°C
Ta slovenski standard je istoveten z: prEN 3240
ICS:
49.030.30 Matice Nuts
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2026
ICS 49.030.30 Will supersede EN 3240:2007
English Version
Aerospace series - Nut, self-locking, clip, in heat resisting
steel FE PA2601 (A286), uncoated - Classification: 1 100
MPa (at ambient temperature)/425 °C
Série aérospatiale - Écrous à pincer, à freinage interne, Luft- und Raumfahrt - Klemmmutter, selbstsichernd,
en acier résistant à chaud FE-PA2601 (A286), non aus hochwarmfestem Stahl FE PA2601 (A286), blank -
revêtus - Classification : 1 100 MPa (à température Klasse: 1 100 MPa (bei Raumtemperatur)/425 °C
ambiante)/425 °C
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3240:2026 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 . 5
4.1 Configuration — Dimensions — Tolerances — Masses . 5
4.2 Material . 5
5 Designation . 8
6 Marking . 8
7 Technical specification and product qualification . 8
7.1 General. 8
7.2 Approval of manufactures . 8
7.3 Qualification of nuts . 8
Bibliography . 9

European foreword
This document (prEN 3240:2026) has been prepared by ASD-STAN
...