Aerospace series - Nuts, hexagonal, slotted/castellated, normal height, normal accross flats, in heat resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/650 °C

This European Standard specifies the characteristics of hexagonal slotted/castellated nuts, normal height, normal across flats, in heat resisting steel, passivated.
Classification: 1 100 MPa / 650 °C.

Luft- und Raumfahrt - Flache Kronenmuttern, normale Höhe, normale Schlüsselweite, aus hochwarmfestem Stahl, passiviert - Klasse: 1100 MPa (bei Raumtemperatur)/650 °C

Diese Norm legt die Eigenschaften von flachen Sechskant-Kronenmuttern mit normaler Höhe und normaler Schlüsselweite, aus hochwarmfestem Stahl, passiviert, fest.
Klassifizierung: 1 100 MPa/650 °C

Série aérospatiale - Écrous hexagonaux à créneaux, hauteur normale, surplats normaux, en acier résistant à chaud, passivés - Classification: 1100 MPa (à température ambiante)/650 °C

Aeronavtika - Matice, šestrobe, z zarezo/kronske, normalna višina, z normalnim zevom ključa, iz toplotnoodpornega jekla, pasivirane - Klasifikacija: 1100 MPa (pri temperaturi okolice)/650 °C

Ta evropski standard določa značilnosti šestrobih matic z zarezo/kronskih, normalne višine, z normalnim zevom ključa, iz toplotnoodpornega jekla in pasiviranih. Klasifikacija: 1.100 MPa / 650°C.

General Information

Status
Published
Publication Date
15-Dec-2009
ICS
49.030.30 - Nuts
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
16-Nov-2009
Due Date
21-Jan-2010
Completion Date
16-Dec-2009
Ref Project
EN 2869:2009 - Aerospace series - Nuts, hexagonal, slotted/castellated, normal height, normal accross flats, in heat resisting steel, passivated - Classification: 1 100 MPa (at ambient temperature) / 650 °C

Overview

EN 2869:2009 is a European aerospace standard that specifies the characteristics of hexagonal slotted (castellated) nuts, normal height and normal across flats, manufactured from heat-resisting steel and passivated for corrosion resistance. The standard defines a classification of 1100 MPa (at ambient temperature) / 650 °C, indicating mechanical strength and maximum service temperature after recovery to ambient conditions.

Key topics

  • Product scope: Hexagonal, slotted/castellated nuts with MJ threads and normal height/width across flats used in aerospace assemblies.
  • Mechanical classification: 1100 MPa / 650 °C - corresponds to the nut’s compatibility with bolts of the same strength class and the maximum temperature the nut can withstand without permanent alteration (as defined in the standard).
  • Dimensions and tolerances: Conformance with ISO 4147 for dimensional profiles; diameter codes (040–240) and associated dimensions are provided in the standard (see Table 1). Form and position tolerances follow ISO 8788.
  • Materials: Permitted heat-resisting steels referenced via EN 2398, EN 2399, EN 3639 or TR 3823 depending on manufacturing route.
  • Surface treatment: Passivation requirements and process classes per EN 2516.
  • Marking and designation: Requirements per EN 2424, including diameter-code-based style marking.
  • Procurement and approval: Technical specification references include ISO 9139 (procurement) and manufacturer approval aligned with EN 9100 quality management expectations.
  • Thread standard: MJ thread limit dimensions per ISO 5855‑2.

Applications

  • Designed specifically for aerospace and defence fastener systems where high-temperature strength and corrosion resistance are required.
  • Typical users:
    • Aerospace fastener manufacturers and distributors
    • Aircraft and engine designers specifying high-temperature fastening hardware
    • Procurement and quality assurance teams in aviation, space and defence industries
    • Maintenance, repair and overhaul (MRO) organizations replacing or inspecting high-temperature fasteners
  • Common use cases: securing components exposed to elevated temperatures (e.g., engine, exhaust, hot-structure assemblies) where castellated nuts allow split-pin locking for safety-critical retention.

Related standards

  • ISO 4147, ISO 5855-2, ISO 8788, ISO 9139
  • EN 2398, EN 2399, EN 3639 (heat-resisting steels)
  • EN 2516 (passivation), EN 2424 (marking), EN 9100 (manufacturer approval/quality)

EN 2869:2009 is essential when specifying or procuring castellated aerospace nuts in high-temperature applications - ensuring dimensional interchangeability, material suitability, surface treatment and traceability for safety-critical aerospace assemblies.

Frequently Asked Questions

SIST EN 2869:2010 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Nuts, hexagonal, slotted/castellated, normal height, normal accross flats, in heat resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/650 °C". This standard covers: This European Standard specifies the characteristics of hexagonal slotted/castellated nuts, normal height, normal across flats, in heat resisting steel, passivated. Classification: 1 100 MPa / 650 °C.

This European Standard specifies the characteristics of hexagonal slotted/castellated nuts, normal height, normal across flats, in heat resisting steel, passivated. Classification: 1 100 MPa / 650 °C.

SIST EN 2869:2010 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.

SIST EN 2869:2010 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)


2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Flache Kronenmuttern, normale Höhe, normale Schlüsselweite, aus hochwarmfestem Stahl, passiviert - Klasse: 1100 MPa (bei Raumtemperatur)/650 °CSérie aérospatiale - Écrous hexagonaux à créneaux, hauteur normale, surplats normaux, en acier résistant à chaud, passivés - Classification: 1100 MPa (à température ambiante)/650 °CAerospace series - Nuts, hexagonal, slotted/castellated, normal height, normal accross flats, in heat resisting steel, passivated - Classification: 1100 MPa (at ambient temperature)/650 °C49.030.30MaticeNutsICS:Ta slovenski standard je istoveten z:EN 2869:2009SIST EN 2869:2010en01-januar-2010SIST EN 2869:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2869
November 2009 ICS 49.030.30 English Version
Aerospace series - Nuts, hexagonal, slotted/castellated, normal height, normal accross flats, in heat resisting steel, passivated -Classification: 1 100 MPa (at ambient temperature) / 650 °C
Série aérospatiale - Écrous hexagonaux à créneaux, hauteur normale, surplats normaux, en acier résistant à chaud, passivés - Classification : 1 100 MPa (à température ambiante) / 650 °C
Luft- und Raumfahrt - Flache Kronenmuttern, normale Höhe, normale Schlüsselweite, aus hochwarmfestem Stahl, passiviert -Klasse: 1 100 MPa (bei Raumtemperatur) / 650 °C This European Standard was approved by CEN on 17 October 2009.
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 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 Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2869:2009: ESIST EN 2869:2010

This European Standard specifies the characteristics of hexagonal slotted/castellated nuts, normal height,
...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.

Loading comments...