SIST EN 4111:2009

Aerospace series - Wrenches, splined, socket for pipe fittings - Technical specification

This standard specifies the requirements which must be met by hand-operated splined wrenches and sockets for aerospace applications.

Luft- und Raumfahrt - Ringschlüssel und Steckschlüsseleinsätze für Rohrverschraubungen - Technische Lieferbedingungen

Diese Norm legt die Anforderungen, denen handbetätigte Ringschlüssel und Steckschlüsseleinsätze für die Anwendung in der Luft- und Raumfahrt entsprechen müssen, fest.

Série aérospatiale - Clés et embouts cannelés, à tuyauter - Spécification technique

Aeronavtika - Vijačniki (obročni in nasadni) za cevne fitinge - Tehnična specifikacija

General Information

• Status: Published
• Publication Date: 14-May-2009
• ICS: 49.030.99 - Other fasteners
• Technical Committee: I13 - Imaginarni 13
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 16-Apr-2009
• Due Date: 21-Jun-2009
• Completion Date: 15-May-2009
• Ref Project: EN 4111:2006 - Aerospace series - Wrenches, splined, socket for pipe fittings - Technical specification

Overview

EN 4111:2006 - "Aerospace series - Wrenches, splined, socket for pipe fittings - Technical specification" (CEN) defines requirements for hand‑operated splined wrenches and sockets used in aerospace pipe‑fitting applications. The standard covers materials, surface condition and coating, spline profile quality, mechanical strength and endurance, dimensional tolerances, test methods, quality assurance, marking and packaging.

Key topics

• Scope and applicability
  • Applies to hand‑operated splined wrenches and socket inserts used with aerospace pipe fittings.
  • Defines a batch as items of the same type and material produced to the same standard.
• Materials and hardness
  • Materials must meet the characteristics specified in the relevant product standard.
  • Rockwell hardness verification uses ISO 6508 procedures; test mandrel hardness specified at 60 HRC for endurance testing.
• Spline geometry and surface finish
  • Inner spline profile must be free from burrs and rough spots; surface roughness per product standard.
  • Test mandrel dimensions reference ISO 4156 (metric module, side fit, 45° pressure angle).
• Mechanical strength and endurance testing
  • Torque testing protocol: 500 cycle endurance test at the endurance torque (see torque table), maximum 60 cycles/min.
  • Every 100 cycles apply a resistance torque equal to 1.5 × endurance torque and rotate 1/8 turn.
  • Failure limits include cracking, spline tip rounding, coating flaking, outer diameter distortion > 0.05 mm, or handle permanent bend > 5°.
• Dimensional tolerances and marking
  • Dimensions/tolerances and marking requirements follow the product standard; packaging is at manufacturer’s discretion.
• Quality assurance
  • Qualification and production acceptance testing defined (sampling plans, destructive/non‑destructive tests) and references EN 9133 for qualification procedures.

Applications and users

• Practical for aerospace manufacturers, tooling and fittings suppliers, maintenance/repair organizations, procurement teams and quality managers involved with aircraft fluid systems.
• Use cases:
  • Specifying and procuring splined wrenches and sockets for hydraulic, fuel and pneumatic pipe fittings.
  • Establishing supplier qualification, incoming inspection and periodic acceptance testing.
  • Designing maintenance toolkits that meet aerospace durability and safety requirements.

Related standards

• ISO 4156 - Straight cylindrical involute splines (metric module, side fit)
• ISO 6508 - Rockwell hardness test for metallic materials
• EN 9133 - Aerospace series - Quality management systems - Qualification procedure for aerospace standard parts

Keywords: EN 4111:2006, aerospace wrenches, splined socket, pipe fittings, torque tests, ISO 4156, ISO 6508, quality assurance, aerospace tooling.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.HKQLþQDVSHFLILNDFLMDLuft- und Raumfahrt - Ringschlüssel und Steckschlüsseleinsätze für Rohrverschraubungen - Technische LieferbedingungenSérie aérospatiale - Clés et embouts cannelés, à tuyauter - Spécification techniqueAerospace series - Wrenches, splined, socket for pipe fittings - Technical specification49.030.99Drugi vezni elementiOther fastenersICS:Ta slovenski standard je istoveten z:EN 4111:2006SIST EN 4111:2009en,de01-julij-2009SIST EN 4111:2009SLOVENSKI
STANDARD
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 4111May 2006ICS 49.030.99 English VersionAerospace series - Wrenches, splined, socket for pipe fittings -Technical specificationSérie aérospatiale - Clés et embouts cannelés, à tuyauter -Spécification techniqueLuft- und Raumfahrt - Ringschlüssel, offen, verzahnt -Technische LieferbedingungenThis European Standard was approved by CEN on 6 February 2006.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania,Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2006 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 4111:2006: ESIST EN 4111:2009

Straight cylindrical involute splines — Metric module, side fit — Generalities, dimensions and inspection. ISO 6508 (all parts),
Metallic materials — Rockwell hardness test. EN 9133,
Aerospace series — Quality management systems — Qualification procedure for aerospace standard parts. 3 Terms and definitions For the purposes of this standard, the following terms and definitio
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