Aerospace series - Nuts, anchor, self-locking, fixed, 90° corner, with counterbore, in heat resisting steel, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C

This standard specifies the characteristics of 90° corner, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in heat resisting steel, MoS2 lubricated.
Classification: 1 100 MPa / 315 °C.

Luft- und Raumfahrt - Annietmuttern, selbstsichernd, 90° Eckflansch, mit zylindrischer Aussenkung, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse : 1 100 MPa (bei Raumtemperatur)/315 °C

Diese Norm legt die Eigenschaften von unbeweglichen Annietmuttern mit 90°-Eckflansch, zylindrischer Aussenkung und einer durch Verformung des oberen Teiles erzielten Selbstsicherung, aus hochwarmfestem Stahl, MoS2-geschmiert, fest.
Klassifizierung: 1 100 MPa ) / 315 °C )

Série aérospatiale - Écrous à river, à freinage interne, fixes, d'angle 90°, avec chambrage, en acier résistant à chaud, lubrifiés MoS2 - Classification: 1100 MPa (à température ambiante)/315 °C

Aeronavtika - Zakovne matice, samozapiralne, fiksne, rob 90°, z izvrtino za vijake, iz toplotnoodpornega jekla, mazane z MoS2 - Klasifikacija: 1100 MPa (pri temperaturi okolice)/315 °C

Ta standard določa značilnosti fiksnih zakovnih matic z 90° robom, z izvrtino za vijake, s samozapiranjem, ki je omogočeno tako, da je zgornji del oblikovan ovalno, iz toplotnoodpornega jekla, mazanih z MoS2. Klasifikacija: 1.100 MPa (pri temperaturi okolice)/315 °C.

General Information

Status
Published
Publication Date
07-Mar-2010
ICS
49.030.30 - Nuts
Technical Committee
I13 - Imaginarni 13
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
01-Mar-2010
Due Date
06-May-2010
Completion Date
08-Mar-2010
Ref Project
EN 2863:2010 - Aerospace series - Nuts, anchor, self-locking, fixed, 90° corner, with counterbore, in heat resisting steel, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature) / 315 °C

Overview

EN 2863:2010 is a CEN (ASD‑STAN) aerospace standard that specifies the characteristics of 90° corner, counterbored fixed anchor nuts with a self‑locking feature. These nuts are manufactured from heat‑resisting steel and MoS2 (molybdenum disulfide) lubricated. The standard defines a performance classification of 1 100 MPa (at ambient temperature) / 315 °C, covering dimensional, material, surface treatment, marking and procurement requirements for interchangeability and high‑temperature performance.

Key topics and technical requirements

  • Part geometry and dimensions: Dimensions and tolerances are referenced to ISO 3221 (aerospace MJ thread nuts) and specified before MoS2 lubrication and before forming the self‑locking zone. Diameter codes cover the MJ range (examples in the standard include MJ3 to MJ10).
  • Self‑locking method: Locking is achieved by forming the upper portion of the nut out‑of‑round, providing internal deformation‑type locking without separate inserts.
  • Materials: Heat‑resisting steels per EN 2398 / EN 2399 / EN 3638 / EN 3639 or technical report TR 3791 are acceptable, ensuring required strength and high‑temperature stability.
  • Surface treatment & lubrication: MoS2 dry lubricant application per EN 2491 is required; surface treatment must preserve the 315 °C temperature class.
  • Form & position tolerances: Conformance to ISO 8788 for tolerances of form and position.
  • Marking & designation: Marking follows EN 2424 (style N) and the standard defines a clear designation/identity block for procurement and traceability.
  • Quality & approval: Manufacturer approval, quality system requirements and product qualification reference EN 9100 and EN 9133; technical procurement guidance refers to ISO 5858.

Practical applications

  • Use in aerospace structures requiring fixed anchor nuts at 90° corners (e.g., frame joints, brackets, flanges) where space and orientation dictate a corner fixed nut.
  • Suitable for high‑temperature assemblies up to 315 °C after exposure when MoS2 lubrication and material selection permit.
  • Environments requiring reliable self‑locking performance without separate locking inserts: vibration‑prone airframe, engine accessory mounts, and other critical aerospace joints.

Who uses this standard

  • Aerospace design and stress engineers specifying fasteners for high‑temperature or high‑strength joints.
  • Fastener manufacturers and heat‑treatment suppliers producing aerospace anchor nuts.
  • Procurement, quality assurance, inspection and certification teams ensuring traceability, marking and compliance.
  • Maintenance and repair organizations replacing qualified aerospace standard parts.

Related standards

  • ISO 3221, ISO 5855‑2, ISO 5858, ISO 8788
  • EN 2398, EN 2399, EN 3638, EN 3639, TR 3791
  • EN 2491 (MoS2 coatings), EN 2424 (marking)
  • EN 9100, EN 9133 (quality and product qualification)

Keywords: EN 2863:2010, aerospace nuts, anchor nut, self‑locking, 90° corner, counterbore, heat resisting steel, MoS2 lubricated, 1100 MPa, 315 °C, CEN.

Frequently Asked Questions

SIST EN 2863:2010 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Nuts, anchor, self-locking, fixed, 90° corner, with counterbore, in heat resisting steel, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C". This standard covers: This standard specifies the characteristics of 90° corner, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in heat resisting steel, MoS2 lubricated. Classification: 1 100 MPa / 315 °C.

This standard specifies the characteristics of 90° corner, counterbored fixed anchor nuts, with a self-locking feature achieved by forming the upper portion out-of-round, in heat resisting steel, MoS2 lubricated. Classification: 1 100 MPa / 315 °C.

SIST EN 2863:2010 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 2863:2010 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.Aeronavtika - Zakovne matice, samozapiralne, fiksne, rob 90°, z izvrtino za vijake, iz toplotnoodpornega jekla, mazane z MoS2 - Klasifikacija: 1100 MPa (pri temperaturi okolice)/315 °CLuft- und Raumfahrt - Annietmuttern, selbstsichernd, 90° Eckflansch, mit zylindrischer Aussenkung, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse : 1 100 MPa (bei Raumtemperatur)/315 °CSérie aérospatiale - Écrous à river, à freinage interne, fixes, d'angle 90°, avec chambrage, en acier résistant à chaud, lubrifiés MoS2 - Classification: 1100 MPa (à température ambiante)/315 °CAerospace series - Nuts, anchor, self-locking, fixed, 90° corner, with counterbore, in heat resisting steel, MoS2 lubricated - Classification: 1100 MPa (at ambient temperature)/315 °C49.030.30MaticeNutsICS:Ta slovenski standard je istoveten z:EN 2863:2010SIST EN 2863:2010en,de01-april-2010SIST EN 2863:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2863
February 2010 ICS 49.030.30 English Version
Aerospace series - Nuts, anchor, self-locking, fixed, 90° corner, with counterbore, in heat resisting steel, MoS2 lubricated - Classification: 1 100 MPa (at ambient temperature) / 315 °C
Série aérospatiale - Écrous à river, à freinage interne, fixes, d'angle 90°, avec chambrage, en acier résistant à chaud, lubrifiés MoS2 - Classification : 1 100 MPa (à température ambiante) / 315 °C
Luft- und Raumfahrt - Annietmuttern, selbstsichernd, 90° Eckflansch, mit zylindrischer Aussenkung, aus hochwarmfestem Stahl, MoS2-geschmiert - Klasse: 1 100 MPa (bei Raumtemperatur) / 315 °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, Croatia, 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:
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B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2863:2010: ESIST EN 2863:2010
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