oSIST prEN 4529-003:2025
(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
- 4020 - Public enquire (PE) (Adopted Project)
- Start Date
- 13-May-2025
- Due Date
- 30-Sep-2025
- Completion Date
- 24-Jul-2025
Relations
- Effective Date
- 02-Oct-2024
Overview
prEN 4529-003 - Aerospace series - Sealing plugs - Part 003: Class T - is a CEN draft product standard (2025) that defines the required characteristics for sealing plugs, Class T, used with cable (wire) sealing grommets in electrical and optical connection elements. It is intended to be used together with EN 4529-001 (technical specification) and EN 4529-002 (index of product standards). This edition updates EN 4529-003:2006 and introduces a new size code 10. Class T plugs are derived from MS27488 and are specified for high-temperature aerospace environments.
Key topics and requirements
- Operating temperature: Class T rated from −65 °C to 260 °C.
- Material: Plugs shall be manufactured from PTFE (polytetrafluoroethylene) in accordance with EN ISO 13000-2 Type E or an equivalent material.
- Dimensions, mass and colours: Defined by Figure 1 and Table 1 of the standard. Sizes and colour codes are specified per contact cavity or module size; two models are allowed (Model N = Normal, Model L = Long).
- Installation: Plugs are fully inserted with the thicker end first; no special installation tools are required.
- Testing requirements: Tests are referenced to the EN 2591 series (visual examination, dimensional checks, insulation resistance, endurance at temperature, rapid change of temperature, mould growth, fluid resistance, flammability, hydrolytic stability, etc.). When PTFE Type E is used, some material-related tests (EN 2591-206, -301, -306, -315, -317, -515) may not be required.
- Designation: Example format - SEALING PLUG EN 4529-003 N 20 (where N = model, 20 = size code). Originator code may be added if needed.
- Marking: Not applicable for this product standard.
- Standards status: Draft submitted for CEN enquiry; will supersede EN 4529-003:2006 when adopted.
Practical applications
- Used to seal unused or spare cavities in aerospace circular and other connector types where cable/wire sealing grommets are installed.
- Protects connectors from contamination, moisture ingress, fluids, and extreme temperatures during aircraft and spacecraft operation, maintenance or storage.
- Common in electrical and optical connection systems on aircraft structures, engines, avionics bay installations and ground-support equipment.
Who should use this standard
- Aerospace component designers and connector manufacturers specifying sealing plugs.
- Quality, procurement and testing engineers in aerospace OEMs and Tier suppliers.
- Certification and maintenance teams ensuring connector sealing compliance in harsh/environmental conditions.
Related standards
- EN 4529-001 (Technical specification)
- EN 4529-002 (Index of product standards)
- EN 2591 series (test methods)
- EN ISO 13000-2 (PTFE test specimen preparation)
- EN 2997-001, EN 3155-001, MS27488
Keywords: prEN 4529-003, sealing plugs, Class T, aerospace sealing plugs, PTFE plugs, connector sealing, cable sealing grommets, EN 4529-001.
Frequently Asked Questions
oSIST prEN 4529-003:2025 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.
oSIST prEN 4529-003:2025 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.
oSIST prEN 4529-003:2025 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.
You can purchase oSIST prEN 4529-003:2025 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
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
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
DRAFT
EUROPEAN STANDARD
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.
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
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.
Introduction
The sealing plug specified in this document is derived from MS27488.
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