SIST EN 2605:2006
(Main)Aerospace series - 24° interface for adaptors, threaded, with lockring - Geometric configuration
Aerospace series - 24° interface for adaptors, threaded, with lockring - Geometric configuration
This standard specifies the dimensional characteristics of the 24° interface for adaptors, threaded, with lock-ring, assembly with elastomer O ring, for aerospace applications.
This standard applies to all adaptors, threaded, with lockring assembled to EN 2607 and used in hydraulic systems with a maximum pressure of 28 000 kPa for which a metric size coupling with a 24° conical sealing surface has been selected.
Luft- und Raumfahrt - 24° -Anschlusszapfen für gerade Einschraubverschraubungen mit Sicherungsring - Konstruktionsblatt
Diese Norm legt die Maße von 24° Anschlusszapfen für gerade Einschraubverschraubungen mit Sicherungsring und Elastomer O Ring zur Verwendung in der Luft- und Raumfahrt fest.
Diese Norm gilt für alle geraden Einschraubverschraubungen mit Sicherungsring, die nach EN 2607 aufgebaut sind und in Hydraulikanlagen mit 28 000 kPa Höchstdruck verwendet werden, für die eine metrische Verschraubung mit 24° Konus Dichtfläche gewählt wurde.
Série aérospatiale - Interface 24° pour raccords a implanter, filetés, avec bague de sécurité - Configuration géométrique
Aeronavtika – Vmesnik 24° za adapterje, z navojem, z zaklepnim obročkom – Geometrijski načrt
General Information
- Status
- Published
- Publication Date
- 31-Aug-2006
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 6060 - National Implementation/Publication (Adopted Project)
- Start Date
- 01-Sep-2006
- Due Date
- 01-Sep-2006
- Completion Date
- 01-Sep-2006
Overview
EN 2605:2005 defines the geometric configuration and dimensional characteristics of the 24° interface for threaded adaptors with a lockring and elastomer O‑ring for aerospace hydraulic systems. It applies to metric-size couplings that use a 24° conical sealing surface and to adaptors assembled in accordance with EN 2607–EN 2608 for hydraulic systems with a nominal pressure up to 28 000 kPa. The standard supports interchangeability, safe sealing performance and uniform manufacture of aerospace hydraulic fittings.
Key topics and requirements
- Dimensional characteristics: Precise inside and outside dimensions for the 24° conical sealing interface are specified; tables and figures in the standard give size codes and critical dimensions for metric thread sizes.
- Threading: Uses MJ thread forms referenced to ISO 5855‑1 and ISO 5855‑3 where applicable (MJ thread limits and general requirements).
- Lockring and O‑ring assembly: Defines geometric position and interaction of the lockring and elastomer O‑ring to ensure proper retention and sealing.
- Surface finish: Surface roughness requirements for sealing faces are referenced (see figure and related clauses) to ensure proper contact and O‑ring performance.
- Compatibility: Intended for use with ports and port ends standardized in EN 2602 and EN 2603, and with O‑rings as surveyed in EN 2607; lockring dimensions are aligned with EN 2645.
- Designation: Prescribes a concise identification format (e.g., EN 2605 - [code]) for part marking and documentation.
Applications and users
Who uses EN 2605:2005:
- Aerospace OEMs and suppliers designing and manufacturing hydraulic fittings, adaptors and couplings.
- Fluid-system designers specifying metric 24° conical sealing connections for aircraft hydraulic lines.
- Quality, inspection and maintenance teams validating dimensional conformity, surface finish and correct lockring/O‑ring assembly.
- Procurement and certification bodies ensuring interchangeability and compliance across the supply chain.
Typical applications:
- Aircraft hydraulic lines and components where a secure, leak‑free metric coupling with a 24° sealing surface is required.
- Replacement parts and retrofits where compatibility with existing EN 2602/2603 ports or EN 2607 O‑rings is mandatory.
Related standards
- ISO 5855‑1, ISO 5855‑3 (MJ threads)
- ISO 7321 (24° tube fitting geometry)
- EN 2602 (ports for adaptors)
- EN 2603 (port ends for adaptors)
- EN 2607 (O‑ring survey for adaptors)
- EN 2645 (lockrings for adaptors)
EN 2605:2005 is essential for ensuring consistent, safe design and manufacture of 24° threaded adaptors with lockring used in aerospace hydraulic systems.
Frequently Asked Questions
SIST EN 2605:2006 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - 24° interface for adaptors, threaded, with lockring - Geometric configuration". This standard covers: This standard specifies the dimensional characteristics of the 24° interface for adaptors, threaded, with lock-ring, assembly with elastomer O ring, for aerospace applications. This standard applies to all adaptors, threaded, with lockring assembled to EN 2607 and used in hydraulic systems with a maximum pressure of 28 000 kPa for which a metric size coupling with a 24° conical sealing surface has been selected.
This standard specifies the dimensional characteristics of the 24° interface for adaptors, threaded, with lock-ring, assembly with elastomer O ring, for aerospace applications. This standard applies to all adaptors, threaded, with lockring assembled to EN 2607 and used in hydraulic systems with a maximum pressure of 28 000 kPa for which a metric size coupling with a 24° conical sealing surface has been selected.
SIST EN 2605:2006 is classified under the following ICS (International Classification for Standards) categories: 49.030.99 - Other fasteners. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 2605:2006 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.Aerospace series - 24° interface for adaptors, threaded, with lockring - Geometric configurationSérie aérospatiale - Interface 24° pour raccords a implanter, filetés, avec bague de sécurité - Configuration géométriqueLuft- und Raumfahrt - 24° -Anschlusszapfen für gerade Einschraubverschraubungen mit Sicherungsring - KonstruktionsblattTa slovenski standard je istoveten z:EN 2605:2005SIST EN 2605:2006en49.030.99ICS:SLOVENSKI
STANDARDSIST EN 2605:200601-september-2006
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2605
December 2005 ICS 49.030.99 English Version
Aerospace series – 24° interface for adaptors, threaded, with lockring - Geometric configuration
Série aérospatiale - Raccords droits métriques avec bague de sécurité - Interface des raccords à 24° - Dimensions
Luft- und Raumfahrt – 24° -Anschlusszapfen für gerade Einschraubverschraubungen mit Sicherungsring - Konstruktionsblatt This European Standard was approved by CEN on 28 October 2005.
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 Central Secretariat 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
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B-1050 Brussels © 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2605:2005: E
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