EN 3274:2001
(Main)Aerospace series - Pipe coupling 8°30' - Thread end - Geometric configuration
Aerospace series - Pipe coupling 8°30' - Thread end - Geometric configuration
This standard specifies the characteristics of the thread end for 8°30' pipe couplings, nominal pressure up to 28 000 kPa, for aerospace applications.
Luft- und Raumfahrt - Rohrverschraubung 8°30' - Gewindeende - Konstruktionsblatt
Diese Norm legt die Eigenschaften des Gewindeendes für Rohrverschraubungen 8°30', Nenndruck bis 28 000 kPa, zur Verwendung in der Luft- und Raumfahrt fest.
Série aérospatiale - Système de raccordement 8°30' - Extrémité de filetage - Configuration géométrique
La présente norme spécifie les caractéristiques de l'extrémité de filetage du système de raccordement 8°30', pression nominale jusqu'à 28 000 kPa, pour applications aérospatiales.
Aerospace series - Pipe coupling 8°30' - Thread end - Geometric configuration
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Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN 3274:2004
01-maj-2004
Aerospace series - Pipe coupling 8°30' - Thread end - Geometric configuration
Aerospace series - Pipe coupling 8°30' - Thread end - Geometric configuration
Luft- und Raumfahrt - Rohrverschraubung 8°30' - Gewindeende - Konstruktionsblatt
Série aérospatiale - Systeme de raccordement 8°30' - Extrémité de filetage -
Configuration géométrique
Ta slovenski standard je istoveten z: EN 3274:2001
ICS:
49.030.10 Navoji Screw threads
SIST EN 3274:2004 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN 3274:2004
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SIST EN 3274:2004
EUROPEAN STANDARD
EN 3274
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 49.080
English version
Aerospace series - Pipe coupling 8°30' - Thread - Geometric
configurations
Série aérospatiale - Système de raccordement 8°30' - Luft- und Raumfahrt - Rohrverschraubung 8°30' - Gewinde
Filetage - Configurations géométriques - Konstruktionsblatt
This European Standard was approved by CEN on 29 December 2000.
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 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 Management Centre has the same status as the official
versions.
CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36 B-1050 Brussels
© 2001 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 3274:2001 E
worldwide for CEN national Members.
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SIST EN 3274:2004
EN 3274:2001 (E)
Foreword
This European Standard has been prepared by the European Association of Aerospace Manufacturers
(AECMA).
After inquiries and votes carried out in accordance with the rules of this Association, this Standard has
received the approval of the National Associations and the Official Services of the member countries of
AECMA, 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 April 2002, and conflicting national standards shall be withdrawn at
the latest by April 2002.
According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Czech Republic, Denmark,
Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal,
Spain, Sweden, Switzerland and the United Kingdom.
2
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SIST EN 3274:2004
EN 3274:2001 (E)
1 Scope
This standard specifies the characteristics of the thread end for 830' pipe couplings, nominal pressure up to
28 000 kPa, for aerospace applications.
2 Normative references
This European Standard incorporates by dated or undated reference provisions from other publications.
These normative references are cited at the appropriate places in the text and the publications are listed
hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to
this European Standard only when incorporated in it by amendment or revision. For undated references, the
latest edition of the publication referred to applies (including amendments).
ISO 5855-3 Aerospace – MJ threads – Part 3: Limit dimensions for fittings for fluid systems
ISO 8788 Aerospace – Nuts, metric – Tolerances of form and position
3 Required characteristics
3.1 Configuration – Dimensions
Dimensions are in millimetres.
Dimensions and tolerances apply before lubrication.
3.1.1 Form B
According to figure 1 and table 1
3.1.2 Forms C to L
According to figures 2 to 10 and table 1 and 2
3.2 Surface roughness
According to figures 1 to 10
The O-ring sealing groove shall not contain any radial tool marks.
3
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SIST EN 3274:2004
EN 3274:2001 (E)
a
Thread
Figure 1 – Form B
4
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SIST EN 3274:2004
EN 3274:2001 (E)
Table 1
a b c
Code Thread d d d e g l r s T
1 2
...
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