SIST EN 3270:2004
(Main)Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with lockring
Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with lockring
This standard specifies the characteristics for blanking plugs with lockring for pipe couplings 8°30', in titanium alloy, for aerospace applications.
Nominal pressure: up to 28 000 kPa
Temperature range: - 55 °C to + 135 °C
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung - Verschlußschrauben mit Sicherungsring
Série aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Obturateurs filetés avec bague de freinage
Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with lockring
General Information
Relations
Overview
EN 3270:2001 (Aerospace series) specifies the requirements for blanking plugs with lockring used on pipe couplings 8°30' manufactured in titanium alloy for aerospace applications. The standard defines dimensional, material and surface treatment requirements to ensure interchangeability and performance in fluid systems operating up to 28 000 kPa and in the temperature range -55°C to +135°C.
This standard is intended for use where consistent configuration, marking and technical specification are required for aerospace pipe coupling blanking plugs.
Key Topics
- Scope & operating limits
- Nominal pressure: up to 28 000 kPa
- Temperature range: -55°C to +135°C
- Configuration, dimensions & mass
- Detailed geometry and mass are given by figure and table references within the standard; dimensions apply before lubrication or anodizing.
- Materials
- Titanium alloy per EN 3311 or EN 3314 (as referenced in the standard).
- Surface treatments
- Primary: lubrication according to EN 2491 (all surfaces). Prior to lubrication, surfaces shall be abrasive blasted using non‑metallic grit. Film thickness: 0,005 mm to 0,013 mm.
- Alternative: anodizing per AMS 2488D, type 2.
- Designation & marking
- Example designation:
BLANKING PLUG EN3270 06(code per table in the standard). - Marking to follow EN 2424, style A.
- Example designation:
- Technical specification
- Technical requirements aligned with EN 3079 (type II) for corresponding adaptors and ports.
Applications
EN 3270:2001 is targeted at aerospace manufacturers, suppliers and design engineers who specify or produce pipe coupling components for fluid systems. Typical practical uses include:
- Securing and sealing unused ports on hydraulic and pneumatic lines during assembly, testing or maintenance.
- Providing a standardized, traceable blanking solution compatible with 8°30' titanium pipe couplings.
- Ensuring consistent surface treatment and marking for corrosion protection and part identification.
By adhering to EN 3270:2001, organizations achieve interoperability across suppliers and maintain compliance with aerospace configuration control and service temperature/pressure limits.
Related Standards
Key normative references cited by EN 3270:2001 include:
- ISO 5855-3 (MJ threads limit dimensions for fittings)
- EN 2424 (marking of aerospace products)
- EN 2491 (molybdenum disulphide dry lubricants/coating methods)
- EN 2602 / EN 2603 / EN 2645 (ports, unions and lockring dimensions)
- EN 3079 (pipe coupling adaptors up to 28 000 kPa)
- EN 3311 / EN 3314 (titanium alloy bar specifications)
- AMS 2488D (anodic treatment for titanium alloys)
These cross-references ensure consistent thread, port and coating practices across aerospace fluid-system components and support accurate procurement and manufacturing control.
Frequently Asked Questions
SIST EN 3270:2004 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with lockring". This standard covers: This standard specifies the characteristics for blanking plugs with lockring for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C
This standard specifies the characteristics for blanking plugs with lockring for pipe couplings 8°30', in titanium alloy, for aerospace applications. Nominal pressure: up to 28 000 kPa Temperature range: - 55 °C to + 135 °C
SIST EN 3270:2004 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN 3270:2004 has the following relationships with other standards: It is inter standard links to SIST EN 3270:2004/AC:2004. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN 3270:2004 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-maj-2004
Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with
lockring
Aerospace series - Pipe coupling 8°30' in titanium alloy - Blanking plugs with lockring
Luft- und Raumfahrt - Rohrverschraubung 8°30' aus Titanlegierung -
Verschlußschrauben mit Sicherungsring
Série aérospatiale - Systeme de raccordement 8°30' en alliage de titane - Obturateurs
filetés avec bague de freinage
Ta slovenski standard je istoveten z: EN 3270:2001
ICS:
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EUROPEAN STANDARD
EN 3270
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2001
ICS 49.030.20
English version
Aerospace series - Pipe coupling 8°30' in titanium alloy -
Blanking plugs with lockring
Série aérospatiale - Système de raccordement 8°30' en Luft- und Raumfahrt - Rohrverschraubung 8°30' aus
alliage de titane - Obturateurs filetés avec bague de Titanlegierung - Verschlußschrauben mit Sicherungsring
freinage
This European Standard was approved by CEN on 6 January 2001.
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 3270:2001 E
worldwide for CEN national Members.
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.
1 Scope
This standard specifies the characteristics for blanking plugs with lockring for pipe couplings 830', in titanium
alloy, for aerospace applications.
Nominal pressure: up to 28 000 kPa
Temperature range: – 55 C to + 135 C
2 Normative references
This European Standard inco
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