EN 4168:2004
(Main)Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting steel FE-PA2601 (A286)
Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting steel FE-PA2601 (A286)
This standard specifies the characteristics of outer clips, three parts, spring tension, in FE-PA92HT for applications at a maximum temperature of 260 °C.
They shall be assembled with parts from EN 4166 and EN 4167.
Luft- und Raumfahrt - Rohrschellen, federnd, dreiteilig - Außenschelle aus hochwarmfestem Stahl FE-PA2601 (A286)
Diese Norm legt die Eigenschaften von Außenschellen aus FE PA2601 für dreiteilige, federnde Rohr¬schellen für Anwendungen bei einer Temperatur von max. 260 °C fest.
Sie sind mit Teilen nach EN 4166 und EN 4167 zusammenzubauen.
Série aérospatiale - Colliers de fixation à ressort en trois parties - Demi-colliers extérieurs en acier résistant à chaud FE-PA2601 (A286)
Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting steel FE-PA2601 (A286)
General Information
Relations
Overview
EN 4168:2004 is a European aerospace standard that specifies the characteristics of outer, three-part spring-tension clips manufactured from heat-resisting steel FE-PA2601 (A286). Intended for aerospace fluid and hydraulic systems, the standard covers clips designed for service at temperatures up to 260 °C and describes configuration, materials, heat treatment, surface treatment and identification requirements. These outer clips are intended to be assembled with parts defined in EN 4166 (PTFE bushes) and EN 4167 (inner clips).
Key topics and technical requirements
- Material: Heat-resisting steel per EN 3638 - designated FE-PA2601 (A286).
- Temperature rating: Suitable for applications up to 260 °C.
- Configuration and dimensions: Detailed dimensions, tolerances and masses are given (see figure/table in the standard); dimensions apply after passivation.
- Surface treatment: Passivation requirements referenced to EN 2516.
- Heat treatment: Precipitation heat treated after forming to achieve required mechanical properties.
- Hardness: Specified range 260 HV to 345 HV.
- Marking and identification: Marking to EN 2424 (style A); designation format includes EN number and diameter code (e.g., OUTER CLIP EN4168-012).
- Quality assurance: Manufacturer quality systems to conform to EN 9100.
- Assembly compatibility: Parts designed to be used with EN 4166 (PTFE bushes) and EN 4167 (inner clips).
Applications
- Securing tubes, hoses and components in aerospace fluid and hydraulic systems where elevated temperature resistance is required.
- Use in aircraft and engine installations that demand high-temperature, corrosion-resistant fastening with spring-tension retention.
- Replacement and procurement specifications for OEMs, tier suppliers, maintenance organizations and engineers specifying clips that must meet aerospace material, dimensional and quality controls.
Who uses EN 4168:2004
- Aerospace designers and stress/installation engineers specifying retention hardware.
- Manufacturers of aerospace clips and fasteners producing to AECMA/CEN standards.
- Procurement and quality teams verifying supplier compliance and traceability.
- Maintenance, repair and overhaul (MRO) facilities selecting approved replacement parts.
Related standards
- EN 4166 - Clips, spring tension, three parts - PTFE bushes
- EN 4167 - Clips, spring tension, three parts - Inner clips in FE-PA2601 (A286)
- EN 2516 - Passivation of corrosion resisting steels
- EN 3638 - Material specification for FE-PA2601 (A286)
- EN 2424 - Marking of aerospace products
- EN 9100 - Aerospace quality management systems
Keywords: EN 4168:2004, aerospace clips, outer clips, FE-PA2601, A286, heat resisting steel, three-part spring clip, 260 °C, EN 4166, EN 4167, EN 2516.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2005
1DGRPHãþD
SIST EN 4168:2004
Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting
steel FE-PA2601 (A286)
Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting steel
FE-PA2601 (A286)
Luft- und Raumfahrt - Rohrschellen, federnd, dreiteilig - Außenschelle aus
hochwarmfestem Stahl FE-PA2601 (A286)
Série aérospatiale - Colliers de fixation a ressort en trois parties - Demi-colliers
extérieurs en acier résistant a chaud FE-PA2601 (A286)
Ta slovenski standard je istoveten z: EN 4168:2004
ICS:
49.080 /HWDOVNLLQYHVROMVNL Aerospace fluid systems and
KLGUDYOLþQLVLVWHPLLQGHOL components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 4168
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2004
ICS 49.080 Supersedes EN 4168:2003
English version
Aerospace series - Clips, spring tension, three parts - Outer
clips in heat resisting steel FE-PA2601 (A286)
Série aérospatiale - Colliers de fixation à ressort en trois Luft- und Raumfahrt - Rohrschellen, federnd, dreiteilig -
parties - Demi-colliers extérieurs, en acier résistant à chaud Außenschelle aus hochwarmfestem Stahl FE-PA2601
FE-PA2601 (A286) (A286)
This European Standard was approved by CEN on 11 September 2003.
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
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This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
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EUROPÄISCHES KOMITEE FÜR NORMUNG
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© 2004 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 4168:2004: E
worldwide for CEN national Members.
Contents Page
Foreword.3
1 Scope .4
2 Normative references .4
3 Required characteristics.4
4 Designation .6
5 Marking .6
6 Quality assurance.6
Foreword
This document (EN 4168:2004
...
Frequently Asked Questions
EN 4168:2004 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Clips, spring tension, three parts - Outer clips in heat resisting steel FE-PA2601 (A286)". This standard covers: This standard specifies the characteristics of outer clips, three parts, spring tension, in FE-PA92HT for applications at a maximum temperature of 260 °C. They shall be assembled with parts from EN 4166 and EN 4167.
This standard specifies the characteristics of outer clips, three parts, spring tension, in FE-PA92HT for applications at a maximum temperature of 260 °C. They shall be assembled with parts from EN 4166 and EN 4167.
EN 4168:2004 is classified under the following ICS (International Classification for Standards) categories: 49.080 - Aerospace fluid systems and components. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 4168:2004 has the following relationships with other standards: It is inter standard links to EN 4168:2003. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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