EN 3078:2026
(Main)Aerospace series - P, Q and saddle clamps with rubber cushion - Technical Specification
General Information
- Abstract
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.
- Status
- Published
- Publication Date
- 07-Jul-2026
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/S 3 - Hydraulics
- Current Stage
- 6060 - Definitive text made available (DAV) - Publishing
- Start Date
- 08-Jul-2026
- Completion Date
- 08-Jul-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.
Relations
- Effective Date
- 22-Jul-2026
- Effective Date
- 22-Jul-2026
- Effective Date
- 22-Jul-2026
- Effective Date
- 22-Jul-2026
- Effective Date
- 22-Jul-2026
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Frequently Asked Questions
EN 3078:2026 is a standard 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 has the following relationships with other standards: It is inter standard links to ISO 2859-1:2026, EN 10204:2004, EN ISO 21920-1:2022, ISO 5855-2:1999, ISO 3161:1999. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
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
01-september-2026
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: EN 3078:2026
ICS:
49.030.99 Drugi vezni elementi Other fasteners
49.080 Letalski in vesoljski Aerospace fluid systems and
hidravlični sistemi in deli components
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 3078
EUROPEAN STANDARD
NORME EUROPÉENNE
July 2026
EUROPÄISCHE NORM
ICS 49.060
English Version
Aerospace series - P, Q and saddle clamps with rubber
cushion - Technical Specification
Série aérospatiale - Colliers en " P ", " Q " et " O " avec Luft- und Raumfahrt - Schellen in Schlaufen- (P- und Q-
profilés en élastomère - Spécification technique Form) und Sattel-Form mit Profilgummi - Technische
Lieferbedingungen
This European Standard was approved by CEN on 20 April 2026.
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 standards may be obtained on application to the CEN-CENELEC 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
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.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3078:2026 E
worldwide for CEN national Members.
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
4.2.1 Test temperature . 6
4.2.2 Clamp attachment . 6
4.2.3 Test mandrel. 6
4.2.4 Check of dimensions . 7
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
European foreword
This document (EN 3078:2026) 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 European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by January 2027, and conflicting national standards shall
be withdrawn at the latest by January 2027.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: 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 the
United Kingdom.
1 Scope
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.
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
...