kSIST FprEN 4529-003:2026
(Main)Aerospace series - Elements of electrical and optical connection - Sealing plugs - Part 003: Class T - Product standard
Aerospace series - Elements of electrical and optical connection - Sealing plugs - Part 003: Class T - Product standard
This document specifies the required characteristics of sealing plugs, class T, for use in elements of electrical and optical connection containing cable (wire) sealing grommets, according to EN 4529-002. It is used together with EN 4529-001.
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Verschluss-Stopfen - Teil 003: Klasse T - Produktnorm
Dieses Dokument legt die Anforderungen an Verschluss Stopfen der Klasse T zur Verwendung in elektrischen und optischen Verbindungselementen mit Durchführungsdichtungen nach EN 4529 002 fest. Es ist in Verbindung mit EN 4529 001 anzuwenden.
Série aérospatiale - Organes de connexion électrique et optique - Obturateurs d’étanchéité - Partie 003 : Classe T - Norme de produit
Le présent document spécifie les caractéristiques requises des obturateurs d'étanchéité, de classe T, utilisés dans les organes de connexion électrique et optique contenant des passe-fils étanches, conformément à l’EN 4529-002. Il est utilisé conjointement avec l’EN 4529-001.
Aeronavtika - Elementi električnih in optičnih povezav - Tesnilni čepi - 003. del: Razred T - Standard za proizvod
General Information
- Status
- Not Published
- Public Enquiry End Date
- 23-Jul-2025
- Technical Committee
- I13 - Imaginarni 13
- Current Stage
- 5020 - Formal vote (FV) (Adopted Project)
- Start Date
- 14-May-2026
- Due Date
- 02-Jul-2026
- Completion Date
- 15-May-2026
Relations
- Effective Date
- 02-Oct-2024
Overview
kSIST FprEN 4529-003:2026 is a European standard developed by SIST and ASD-STAN, covering the required characteristics of sealing plugs, Class T, used in aerospace electrical and optical connection elements containing cable (wire) sealing grommets. This standard is part of the comprehensive EN 4529 series, designed to ensure the safety, reliability, and performance of connection systems in aviation and aerospace applications.
This document specifies sealing plugs made from polytetrafluoroethylene (PTFE) as per EN ISO 13000-2, providing robust protection for electrical and optical connections against environmental factors. It replaces the previous edition, EN 4529-003:2006, introducing updates and extended compatibility, such as the addition of size code 10.
Key Topics
- Product Scope: Details the requirements for Class T sealing plugs suitable for temperature ranges from −65°C to 260°C and identifies the necessary dimensional and material attributes.
- Material Specification: Defines PTFE as the baseline material, ensuring chemical resistance, mechanical stability, and dielectric strength under harsh aerospace conditions.
- Dimensions and Sizes: Outlines standardized dimensions, mass, and color coding for easy identification and proper fit across various connector types and cavity sizes.
- Testing Requirements: References test methods from EN 2591 series, including visual and dimensional inspections, endurance at temperature, fluid resistance, flammability, and hydrolytic stability. Certain tests may be omitted when PTFE compliant with EN ISO 13000-2 is used.
- Designation System: Establishes a unified coding scheme for ordering and referencing specific plug types and sizes, streamlining procurement and traceability.
Applications
The sealing plugs defined by this standard are critical components in:
- Aerospace Connectors: Preventing the ingress of moisture, dust, and contaminants in unused connector cavities for both electrical and optical interfaces used in aircraft and spacecraft.
- Cable Grommet Assemblies: Used wherever cable or wire grommets are integral to the sealing of connection elements, ensuring system integrity and long-term reliability.
- High Temperature Environments: Suitable for use in systems exposed to extreme operating temperatures, ensuring continued performance and safety.
- Maintenance and Upgrades: Providing compatible replacement or retrofitting solutions for existing aerospace electrical and optical connections that comply with EN 4529-002 and EN 4529-001 standards.
The rigorous specification of material, size, and performance ensures these sealing plugs deliver dependable protection and compatibility across a broad range of aerospace applications.
Related Standards
Adherence to kSIST FprEN 4529-003:2026 ensures compatibility with the following international standards:
- EN 4529-001: General technical specification for sealing plugs in aerospace connectors.
- EN 4529-002: Index of product standards related to sealing plugs for electrical and optical connections.
- EN 2591 Series: Comprehensive test methods for elements of electrical and optical connections in the aerospace sector, including visual examination, insulation testing, environmental resistance, and more.
- EN ISO 13000-2: Specification for polytetrafluoroethylene (PTFE) materials used in plug construction.
- EN 3155-001 and EN 2997-001: Standards for electrical contacts and connectors, ensuring system interoperability.
By following this standard, stakeholders in aerospace manufacturing, maintenance, and system integration can ensure the highest levels of quality, safety, and interoperability for electrical and optical connector systems.
Keywords: aerospace series, sealing plugs, electrical connection, optical connection, cable grommet, PTFE, connector sealing, aviation standards, SIST, EN 4529, ASD-STAN, temperature resistance, product standard.
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Frequently Asked Questions
kSIST FprEN 4529-003:2026 is a draft published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Elements of electrical and optical connection - Sealing plugs - Part 003: Class T - Product standard". This standard covers: This document specifies the required characteristics of sealing plugs, class T, for use in elements of electrical and optical connection containing cable (wire) sealing grommets, according to EN 4529-002. It is used together with EN 4529-001.
This document specifies the required characteristics of sealing plugs, class T, for use in elements of electrical and optical connection containing cable (wire) sealing grommets, according to EN 4529-002. It is used together with EN 4529-001.
kSIST FprEN 4529-003:2026 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.090 - On-board equipment and instruments. The ICS classification helps identify the subject area and facilitates finding related standards.
kSIST FprEN 4529-003:2026 has the following relationships with other standards: It is inter standard links to SIST EN 4529-003:2009. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
kSIST FprEN 4529-003:2026 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)
SLOVENSKI STANDARD
oSIST prEN 4529-003:2025
01-julij-2025
Aeronavtika - Elementi električnih in optičnih povezav - Tesnilni čepi - 003. del:
Razred T - Standard za proizvod
Aerospace series - Elements of electrical and optical connection - Sealing plugs - Part
003: Class T - Product standard
Luft- und Raumfahrt - Elektrische und optische Verbindungselemente - Verschluss-
Stopfen - Teil 003: Klasse T - Produktnorm
Série aérospatiale - Organes de connexion électrique et optique - Obturateurs
d’étanchéité - Partie 003 : Classe T - Norme de produit
Ta slovenski standard je istoveten z: prEN 4529-003
ICS:
49.060 Letalska in vesoljska Aerospace electric
električna oprema in sistemi equipment and systems
oSIST prEN 4529-003:2025 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 4529-003:2025
oSIST prEN 4529-003:2025
DRAFT
EUROPEAN STANDARD
prEN 4529-003
NORME EUROPÉENNE
EUROPÄISCHE NORM
May 2025
ICS 49.060 Will supersede EN 4529-003:2006
English Version
Aerospace series - Elements of electrical and optical
connection - Sealing plugs - Part 003: Class T - Product
standard
Série aérospatiale - Organes de connexion électrique et Luft- und Raumfahrt - Elektrische und optische
optique - Obturateurs d'étanchéité - Partie 003 : Classe Verbindungselemente - Verschluss-Stopfen - Teil 003:
T - Norme de produit Klasse T - Produktnorm
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, 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.
This draft European Standard was established by CEN 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-CENELEC
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, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2025 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 4529-003:2025 E
worldwide for CEN national Members.
oSIST prEN 4529-003:2025
prEN 4529-003:2025 (E)
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 6
4 Required characteristics . 6
4.1 Specific characteristics . 6
4.2 Dimensions – Mass, colours . 6
4.3 Material . 6
4.4 Dimensions and mass . 6
4.5 Tests . 9
5 Designation . 9
6 Marking . 10
7 Technical specification . 10
Annex A (informative) Standard evolution form . 11
Bibliography . 12
oSIST prEN 4529-003:2025
prEN 4529-003:2025 (E)
European foreword
This document (prEN 4529-003:2025) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 4529-003:2006.
This document includes the following significant technical changes with respect to EN 4529-003:2006:
— Introduction of sealing plugs size code 10.
— The main changes between this edition and the previous edition are listed in Table A.1.
oSIST prEN 4529-003:2025
prEN 4529-003:2025 (E)
Introduction
The sealing plug specified in this document is derived from MS27488.
oSIST prEN 4529-003:2025
p
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