244 International Standard (ISO) INTERNATIONAL ORGANIZATION FOR STANDARDIZATION MEKAYHAPOAHAR OPTAHM3AUMA NO CTAHAAPTW3ALWMORGANISATION INTERNATIONALE DE NORMALISATION Aircraft - Sealing wire Aeronefs -- Fil a plomber First edition-1979-11-15 UDC 629.7 : 669.14-426 Ref. No. ISO 244-1979 (E) ISO 244-1979 (E) Descriptors:aircraft industry,aircraftequipment,wire,sealingwire,dimer mechanical properties rjgfGqx"422Urckpcj"tgugtxfHgd36"3274246 Price based on 1 page nvnncfnfirtknwnf"hnt"inntikc/knimkwun'nh"Vneinnmiser/ilainenfctf"rtnyifnf'ir'ccPoTrPn'hutuint'trtnfwewknnifcwintklnf! FOREWORD ISo (the International Organization for Standardization) is a worldwide federation of national standards institutes (iso member bodies). The work of developing International Standards is carried out through iSO technical committees. Every member body interested in a subject for which a technical committee has been set up has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with IsO, also take part in the work. Draft International Standards adopted by the technical committees are circulated to the member bodies for approval before their acceptance as International Standards by the Iso Council. International Standard ISO 244 was developed by Technical Committee ISO/TC 20, Aircraft and space vehicles, and was circulated to the member bodies in November 1977. It has been approved by the member bodies of the following countries : Australia Italy South Africa, Rep. of Austria Japan Spain Belgium Mexico Turkey Canada Netherlands United Kingdom Czechoslovakia Philippines USA Germany, F.R. Poland Yugoslavia India Romania The member bodies of the following countries expressed disapproval of the document on technical grounds : Brazil France USSR This International Standard cancels and replaces ISO Recommendation R 244-1962, ofwhichitconstitutesatechnicalrevision. International Organization for Standardization, 1979 Printed in Switzerland INTERNATIONALSTANDARD ISO244-1979(E) Aircraft - Sealing wire 1 SCOPE 3.2 Material This International Standard specifies the requirements of Steel with a tensile strength between 230 and 300 MPa steel sealing wire. shall be used. 3.3 Surface treatment 2FIELDOFAPPLICATION Core wire and layerwire shall bezinc coated beforewrapping. This sealing wire is for use in aerospace assemblies and has 3.4 Breaking strength the following purposes : to enable a check tobemade asto whetherequipment The sealing wire shall not have a breaking strength over 36 N. has been used; 3.5 Linear density to prevent inadvertent use of equipment. The sealing wire shall have a linear density of approximately NOTE Sealing wire can also be used to ensure the non-disturbance 1,3×10-3 kg/m. of adjustment. 3.6Procurement 3 REQUIREDCHARACTERISTICS At roomtemperature,the sealingwire shall withstand, without breaking or cracking, bending through 18o°over 3.1 Dimensions a mandrel of the same diameter as the nominal wire diameter E TABLE Dimensions D E F G Hole Sectional diameter nom. max min. max. min. ref. area min. mm mm mm mm mm mm mm2 mm 0,8 0,35 0,30 0,25 0,22 1 0,12 0,9 NOTE-The layer wire may be laid over the corc wire in cither a left hand or right-hand dircction. 1