EN 3078:2026
(Main)Aerospace series - P, Q and saddle clamps with rubber cushion - Technical Specification
Aerospace series - P, Q and saddle clamps with rubber cushion - Technical Specification
This document specifies the required characteristics, inspection and test methods, quality assurance and delivery conditions, for P, Q and saddle clamps with rubber cushion, used for aerospace applications.
Luft- und Raumfahrt - Schellen in Schlaufen- (P- und Q-Form) und Sattel-Form mit Profilgummi - Technische Lieferbedingungen
No Scope available
Série aérospatiale - Colliers en « P », « Q » et « Ω » avec profilés en élastomère - Spécification technique
Le présent document spécifie les caractéristiques requises, les méthodes de contrôle et d'essai, l'assurance qualité et les conditions de livraison des colliers en « P », « Q » et « Ω » avec profilés (coussins) en élastomère, utilisés pour les applications aérospatiales.
Aeronavtika - Objemke tipa P, Q in cevne objemke z zaščitno obrobno prevleko iz gume - Tehnična specifikacija
General Information
- Status
- Not Published
- Publication Date
- 07-Jul-2026
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/S 3 - Hydraulics
- Current Stage
- 6055 - CEN Ratification completed (DOR) - Publishing
- Start Date
- 20-Apr-2026
- Completion Date
- 20-Apr-2026
Overview
EN 3078:2026 is a technical specification developed by CEN for the aerospace industry, detailing the requirements for P, Q, and saddle clamps with rubber cushions. These specialized clamps are optimized for supporting fluid pipes and cable bundles in demanding aerospace environments, where both secure fixation and vibration dampening are critical. The standard encompasses required characteristics, inspection and testing protocols, quality assurance processes, and delivery conditions to ensure product reliability and traceability throughout the lifecycle of aerospace components.
This standard is fundamental for manufacturers, suppliers, and users engaged in aerospace fluid systems and related fastener components, supporting regulatory compliance and operational safety.
Key Topics
- Types of Clamps: Defines and differentiates between "P" clamps (P loop), "Q" clamps (Q loop), and saddle clamps (top and bottom components with cushions, available in fixed and sliding types).
- Required Characteristics: Specifies material properties, dimensional tolerances, mass, and marking requirements crucial for aerospace applications.
- Inspection and Test Methods: Describes protocols for visual assessment, measurement of dimensions and mass, and compliance inspections in accordance with accepted industry references.
- Quality Assurance: Outlines manufacturer approval criteria, acceptance conditions using sampling procedures (per ISO 2859-1), and quality control processes necessary for consistent product quality.
- Packaging and Delivery: Stipulates protection from environmental hazards during storage and transportation, mandatory labeling information, and documentation requirements, including certificates of compliance.
- Defect Classification: Clarifies major and minor defects, their impact on usability or safety, and associated acceptance quality levels (AQLs).
Applications
EN 3078:2026 is widely applied in the following aerospace sectors:
- Aircraft Manufacturing and Maintenance: Ensures the correct selection, installation, and inspection of P, Q, and saddle clamps in critical fluid and cabling systems.
- Space Systems: Supports the stringent requirements for vibration resistance and durability in satellites and propulsion assemblies.
- Aerospace Component Supply Chains: Provides a standard reference for manufacturers and distributors, facilitating quality control and documentation for fasteners and fluid system accessories.
- Quality Management and Compliance Audits: Aids organizations in achieving and maintaining compliance with recognized aerospace quality management frameworks.
Clamps conforming to this standard mitigate risks associated with vibrations, corrosion, and improper attachment, ensuring the long-term integrity of fluid and electrical routing in aircraft and spacecraft.
Related Standards
EN 3078:2026 references and complements several key international and European standards, including:
- EN 10204 - Inspection documents for metallic products.
- EN ISO 21920-1 - Geometrical product specifications for surface texture.
- ISO 2859-1 - Sampling procedures for inspection by attributes.
- ISO 3161 - UNJ threads for aerospace applications.
- ISO 5855-2 - MJ threads limit dimensions for bolts and nuts.
- EN 9100 - Quality management systems for aviation, space, and defense organizations.
Organizations adopting EN 3078:2026 can rely on a harmonized approach for clamp selection, inspection, and documentation in aerospace projects, supporting compliance and enhanced product performance.
By referencing EN 3078:2026, stakeholders in the aerospace industry can ensure high-quality, consistent installation and performance of P, Q, and saddle clamps with rubber cushions, directly contributing to the safety and reliability of modern aerospace systems.
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Frequently Asked Questions
EN 3078:2026 is a draft published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - P, Q and saddle clamps with rubber cushion - Technical Specification". This standard covers: This document specifies the required characteristics, inspection and test methods, quality assurance and delivery conditions, for P, Q and saddle clamps with rubber cushion, used for aerospace applications.
This document specifies the required characteristics, inspection and test methods, quality assurance and delivery conditions, for P, Q and saddle clamps with rubber cushion, used for aerospace applications.
EN 3078:2026 is classified under the following ICS (International Classification for Standards) categories: 49.060 - Aerospace electric equipment and systems; 49.080 - Aerospace fluid systems and components. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 3078:2026 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 3078:2024
01-september-2024
Aeronavtika - Objemke tipa P, Q in cevne objemke z zaščitno obrobno prevleko iz
gume - Tehnična specifikacija
Aerospace series - P, Q and saddle clamps with rubber cushion - Technical Specification
Luft- und Raumfahrt - Schellen in Schlaufen- (P- und Q-Form) und Sattel-Form mit
Profilgummi - Technische Lieferbedingungen
Série aérospatiale - Colliers en « P », serrage central et « Ω » avec profiles en
élastomère - Spécification technique
Ta slovenski standard je istoveten z: prEN 3078
ICS:
49.030.99 Drugi vezni elementi Other fasteners
49.080 Letalski in vesoljski Aerospace fluid systems and
hidravlični sistemi in deli components
oSIST prEN 3078:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 3078:2024
oSIST prEN 3078:2024
DRAFT
EUROPEAN STANDARD
prEN 3078
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2024
ICS 49.060; 49.080
English Version
Aerospace series - P, Q and saddle clamps with rubber
cushion - Technical Specification
Série aérospatiale - Colliers en " P ", serrage central et " Luft- und Raumfahrt - Schellen in Schlaufen- (P- und Q-
O " avec profiles en élastomère - Spécification Form) und Sattel-Form mit Profilgummi - Technische
technique Lieferbedingungen
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
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 3078:2024 E
worldwide for CEN national Members.
oSIST prEN 3078:2024
prEN 3078:2024 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
3.1 Clamps . 4
3.2 Quality assurance . 5
4 Required characteristics, inspection and test methods . 5
4.1 General. 5
4.2 Test conditions . 6
5 Quality assurance . 9
5.1 Approval of manufacturer . 9
5.2 Acceptance conditions . 9
5.3 User’s quality control . 9
5.4 Rejection . 10
6 Packaging and storage . 10
6.1 General. 10
6.2 Parcel information . 10
6.3 Collective packings, for transport . 10
7 Certificate of compliance with the order . 10
Bibliography . 11
oSIST prEN 3078:2024
prEN 3078:2024 (E)
European foreword
This document (prEN 3078:2024) has been prepared by the Aerospace and Defence Industries
Association of Europe — Standardization (ASD-STAN).
This document is currently submitted to the CEN Enquiry.
oSIST prEN 3078:2024
prEN 3078:2024 (E)
1 Scope
This document specifies the required characteristics, inspection test methods, quality assurance and
delivery conditions, for P, Q and saddle clamps with rubber cushion, used for aerospace applications.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 10204, Metallic products - Types of inspection documents
EN ISO 21920-1, Geometrical product specifications (GPS) - Surface texture: Profile - Part 1: Indication of
surface texture (ISO 21920-1)
ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by
acceptance quality limit (AQL) for lot-by-lot inspection
ISO 3161, Aerospace — UNJ threads — General requirements and limit dimensions
ISO 5855-2, Aerospace — MJ threads — Part 2: Limit dimensions for bolts and nuts
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1 Clamps
3.1.1
“P” clamp
single metal strip formed into a “P loop” (see Figure 1)
Note 1 to entry: Used to support fluid pipes or cable bundles. Retained by a single fastener.
3.1.2
“Q” clamp
single metal strip formed into a “Q loop” (see Figure 2)
Note 1 to entry: Used to support fluid pipes or cable bundles. Retained by a single fastener.
3.1.3
“saddle” clamp
two meta
...