Aerospace series - Clips, spring tension, in alloy steel FE-PA3903

This standard specifies the characteristics of spring tension clips for the support of electrical harnesses, in FE-PA3903 for aerospace applications.
Maximum operating temperature: 250 °C

Luft- und Raumfahrt - Federklammern aus legiertem Stahl FE-PA3903

Diese Norm legt die Eigenschaften von Federklammern aus FE PA3903 zur Halterung von elektrischen Leitungsbündeln für Anwendungen in der Luft- und Raumfahrt fest.
Maximale Betriebstemperatur: 250 °C

Série aérospatiale - Colliers lyre, en acier allié FE-PA3903

La présente norme spécifie les caractéristiques des colliers lyre, en acier allié FE-PA3903, utilisés comme support des harnais électriques, pour applications aéronautiques.
Température maximale de fonctionnement : 250 °C.

Aerospace series - Clips, spring tension, in alloy steel FE-PA3903

General Information

Status
Published
Publication Date
18-Feb-2003
Withdrawal Date
30-Aug-2003
ICS
49.030.50 - Washers and other locking elements
Technical Committee
ASD-STAN - Aerospace
Drafting Committee
ASD-STAN/D 3 - Mechanical
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Start Date
19-Feb-2003
Completion Date
19-Feb-2003
Ref Project
SIST EN 4420:2004 - Aerospace series - Clips, spring tension, in alloy steel FE-PA3903

Overview

EN 4420:2003 is a European aerospace standard that specifies the characteristics of spring tension clips used to support electrical harnesses in aircraft and spacecraft. The clips are made from alloy steel FE-PA3903 and are qualified for a maximum operating temperature of 250 °C. The standard defines configuration, dimensions, tolerances, masses, material reference, designation and marking, and references related technical specifications and design/assembly guidance.

Key topics and technical requirements

  • Material: Clips are manufactured in alloy steel FE-PA3903 (see EN 4528). EN 4528 identifies FE-PA3903 as steel (X12CrNi18-10) cold-rolled for spring strip (thickness ≤ 3 mm) with high tensile strength ranges referenced in the normative document.
  • Configuration and styles: Two primary clip styles (A and B) are illustrated with required form features, section views and mandrel / stress conditions. Stress condition is specified when a referenced surface is flat and a mandrel is held by the clip.
  • Dimensions, tolerances and masses: Detailed dimensional tables, tolerances and mass-per-1000-parts metrics are provided (millimetre units). Manufacturer discretion is allowed for unspecified form details.
  • Marking and designation: A standard designation format (example: CLIP, SPRING EN4420-080) and marking locations (e.g., on insertion wing tapes) are specified to support traceability and part identification.
  • Acceptance and qualification: Technical specification and acceptance criteria are referenced (EN 4585) along with design recommendations (TR 4586) and assembly procedures (TR 4587).
  • Normative references: The standard incorporates related documents such as EN 2424 (marking of aerospace products) and EN 4528 (material specification for FE-PA3903).

Practical applications

  • Electrical harness support in airframes, engines, leading to secure routing and retention of wiring and cable looms.
  • Use in high-temperature zones up to 250 °C where corrosion-resistant, high-strength spring clips are required.
  • Suitable for vibration-prone environments where spring tension retention reduces wear and chafing of harnesses.

Who uses this standard

  • Aerospace OEMs and component manufacturers designing or specifying harness support hardware.
  • Procurement and quality assurance teams ensuring parts comply with aerospace material and marking requirements.
  • Suppliers and manufacturers producing FE-PA3903 spring tension clips.
  • Maintenance, repair and overhaul (MRO) organizations verifying replacement parts and installation compliance.

Related standards

  • EN 4528 - Steel FE-PA3903 (material specification)
  • EN 2424 - Marking of aerospace products
  • EN 4585 - Technical specification for clips (qualification & acceptance)
  • TR 4586 - Design recommendations
  • TR 4587 - Assembly procedure

Keywords: EN 4420:2003, spring tension clips, FE-PA3903, aerospace clips, electrical harness support, maximum operating temperature 250 °C, X12CrNi18-10.

Frequently Asked Questions

EN 4420:2003 is a standard published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Clips, spring tension, in alloy steel FE-PA3903". This standard covers: This standard specifies the characteristics of spring tension clips for the support of electrical harnesses, in FE-PA3903 for aerospace applications. Maximum operating temperature: 250 °C

This standard specifies the characteristics of spring tension clips for the support of electrical harnesses, in FE-PA3903 for aerospace applications. Maximum operating temperature: 250 °C

EN 4420:2003 is classified under the following ICS (International Classification for Standards) categories: 49.030.50 - Washers and other locking elements. The ICS classification helps identify the subject area and facilitates finding related standards.

EN 4420:2003 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 - Clips, spring tension, in alloy steel FE-PA3903Luft- und Raumfahrt - Federklammern aus legiertem Stahl FE-PA3903Série aérospatiale - Colliers lyre, en acier allié FE-PA3903Aerospace series - Clips, spring tension, in alloy steel FE-PA390349.030.50Podložke in drugi blokirni elementiWashers and other locking elementsICS:Ta slovenski standard je istoveten z:EN 4420:2003SIST EN 4420:2004en01-maj-2004SIST EN 4420:2004SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4420February 2003ICS 49.030.50English versionAerospace series - Clips, spring tension, in alloy steel FE-PA3903This European Standard was approved by CEN on 14 September 2002.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the 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 translationunder the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovak Republic, Spain, Sweden, Switzerland andUnited Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2003 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4420:2003 ESIST EN 4420:2004
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