EN 4673-003:2010

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Luft- und Raumfahrt - Gewindeeinsätze, UNJ-Gewinden, selbstsichernd, mit selbsträumenden Stiften - Teil 003: Technische LieferbedingungenSérie aérospatiale - Douilles filetées, à filetage UNJ, à freinage interne, à clavettes auto-brochantes - Partie 003: Spécification techniqueAerospace series
- Inserts, UNJ threads, self-locking, with self-broaching keys - Part 003: Technical specification49.030.30MaticeNutsICS:Ta slovenski standard je istoveten z:EN 4673-003:2010SIST EN 4673-003:2010en01-oktober-2010SIST EN 4673-003:2010SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 4673-003
August 2010 ICS 49.030.30 English Version
Aerospace series
- Inserts, UNJ threads, self-locking, with self-broaching keys - Part 003: Technical specification
Série aérospatiale - Douilles filetées, à filetage UNJ, à freinage interne, à clavettes auto-brochantes - Partie 003: Spécification technique
Luft- und Raumfahrt - Gewindeeinsätze, UNJ-Gewinden, selbstsichernd, mit selbsträumenden Stiften - Teil 003: Technische Lieferbedingungen This European Standard was approved by CEN on 12 June 2010.
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 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 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, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2010 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 4673-003:2010: ESIST EN 4673-003:2010

Definition of test block . 18Annex B (normative)
Assembly for rotational resistance test . 19Annex C (normative)
Axial tensile strength test . 20Annex D (normative)
Assembly for reusability test . 22Annex E (normative)
"GO" gauge for inspection of the position of the keys . 26 SIST EN 4673-003:2010

EN 4673-002, Aerospace series — Inserts, UNJ threads, self-locking, with self-broaching keys — Part 002: Design standard
EN 9133, Aerospace series — Quality management systems — Qualification Procedure for Aerospace Standard Parts ISO 2859-1, Sampling procedures for inspection by attributes — Part 1: Sampling schemes indexed by acceptance quality limit (AQL) for lot-by-Iot inspection ISO 3161, Aerospace — UNJ threads — General requirements and limit dimensions ISO 3452-1, Non-destructive testing — Penetrant inspection — Part 1: General principles ISO 4288, Geometrical Product Specifications (GPS) — Surface texture: Profile method — Rules and procedures for the assessment of surface texture ASTM-E112-96, Standard Test Methods for Determining Average Grain Size 2)
1) Published as ASD-STAN Prestandard at the date of publication of this standard by Aerospace and Defence Industries Association of Europe-Standardization (ASD-STAN), (www.asd-stan.org). 2) Published by: ASTM National (US) American Society for Testing and Materials http://www.astm.org/. SIST EN 4673-003:2010

Material In accordance with the definition document. Chemical analysis or certificate of conformity issued by the manufacturer of the semi-finished product. Q
A
5.2
Dimensions, tolerances and tolerances of form and position In accordance with the definition document. A “GO” inspection gauge is to be fitted on the insert keys. On completion of this inspection, the keys must neither be bent nor moved. Standard gauging. See Annex E. Q 39
A Tables 3 and 4 5.3
Manufacturing
5.3.1
Process Insert threads may be produced by machining or forming. Manufacturing method shall be indicated on test report.
5.3.2
Heat treatment The heat treatment medium or atmosphere shall not cause any surface contamination. Calibration of the heat treatment equipment shall be confirmed.
Any scale which will not be removed by subsequent machining shall be removed by abrasive blasting with an appropriate equipment. Visual examination.
The material shall be heat treated in accordance with the material specification defined in the definition document. Examination of the heat treatment specification. continued SIST EN 4673-003:2010

Thread deformation (form out-of round) Threads in the locking zone may be deformed in any manner provided that the insert meets the requirements of this standard. The finished inserts shall allow the "GO" thread plug gauge to enter a minimum of three turns, when gauged from the installation side before engagement in the locking zone. Standard gauging. Q 39
A Tables 3 and 4 5.3.4
Surface roughness In accordance with the definition document. ISO 4288. Q 3
A Tables 3 and 4 5.3.5
Surface coating In accordance with the definition document. See applicable coating standard. Q 36
A Tables 3 and 4
A Table 6 5.4
Mechanical properties
5.4.1
Installation requirement The screwing of insert shall be possible freely by hand. After testing, the inserts shall show no signs of:
 buckling and/or incomplete fitting of the keys,  deformation of the internal thread of the insert caused by keys installation. Inserts shall be installed into test block (see Annex A,
...